What are the saws: the main types and characteristics of the tool. How to choose a good wood saw for your home - tips and an overview of models Which hand saws are the best

Wood has been used as a building material since time immemorial. And now it has not lost its popularity. It is loved for its environmental friendliness and ease of processing, which is best done with wood saws. These tools are available with different parameters, which are selected depending on the specific application.

Specifications

Pila is one of the first hand tools invented by man. Since the advent of the first rough version centuries have passed, and many varieties have appeared for work different type.

Concerning hand saws according to the tree, they differ among themselves in many parameters, among which are the following:

Let's consider each in detail.

hacksaw blade

In principle, this is the tool itself. The most important parameter of the canvas is its length. It is this that determines the range of application possibilities. However, the longer the canvas, the more it springs, which makes it especially difficult to work with hard rocks wood like oak, ash or maple. For sawing small items like a plinth, a bar or a narrow slat, a manual hacksaw for wood with a blade length is enough 25-30 cm. For more serious work, you need a tool with a blade length 45-50 cm.

A simple rule for determining the length: the canvas should be doubled larger diameter logs that will be sawn with it. The teeth of a short hacksaw will stick in the wood, much more effort will have to be applied to work, which will quickly cause fatigue. The width of the canvas usually varies in the range of 10–20 cm. A narrower canvas is not allowed, as it breaks at the slightest bend, but it is inconvenient to work with an overly wide canvas by hand.

Production material

Blades for hacksaws are made of alloyed tool steel with high content carbon and silicon grades:

8 HF, 9 HF, 9 HS;
65 G, 60 C2A;
U7, U7A, U 8, U8A, U8G, U8GA, U9A, U 10.

Tempering a metal by exposing it to a variable magnetic field when a high frequency electric current appears. When propagating over the surface, it heats a layer of metal, which hardens after cooling. The standard hardness is 45 HR C, although it is recommended to take products with a hardness of 55-60 HR C when the flexibility is sufficient and the teeth have high stability. With an external examination of such a tool, one can see a darkish shade of honed teeth.

Tooth parameters

Precision and performance mainly depends on tooth size.

The defining indicator - "TPI" - the number of teeth per inch.

There is an inverse relationship between these technical parameters:

Cloths with large teeth allow you to work at high speed, but the cut turns out to be sloppy, rough.
The fine-toothed blade guarantees a clean and precise cut, but the cutting speed is relatively slow.

When determining the size of the teeth, be guided by the material being processed. To work with chipboard, for example, a high cutting accuracy is required, so a tool with a high TPI of 7-9 is selected. For sawing logs and garden work, where the cleanliness of the cut is not so significant, TPI 3-6 will suffice.

The difference between a hardened and an ordinary tooth is that the first in domestic use doesn't get dull for a long time. But a saw with hardened teeth cannot be resharpened, it can only be thrown away after use. Ordinary teeth can be sharpened, which is done with a special file marked with an accident (for sharpening saws). It is enough to spend several times on each tooth.

Depending on the type of teeth, there are three types of hacksaws for different types of sawing:

Some modern instruments have teeth in the shape of a trapezoid. This increases strength and durability, but it is not easy to sharpen such a blade, since the trapezoidal teeth are difficult to shape. Because of this, the service life is greatly reduced, and after it has expired, the canvas has to be changed.

The market also offers modernized hacksaws. They are effective for sawing raw wood. Wet chips in the process of work easily exit through the gaps between the teeth, and the movement of the tool is not hindered.

Types of hand saws for wood

It is impossible to say unequivocally which is the best hacksaw for wood. Eat different variants, for different types of work. Let's describe them.

Depending on the design and purpose of the saw, there are:

Swing - for longitudinal cutting.
Transverse - for sawing across the fiber.
Vyruzhny - for making holes, figured sawing, making roundings.
Spiked - for cutting connecting spikes and cutting out simple geometric shapes.

It is possible to cut the material along and across only with a bow saw, sawing blanks with complex lines. The work can be done without an assistant.

Handle type

In many ways, the ease of use of the tool is determined by the shape and material of its handle. Handles can be wooden or plastic. The surface at the grip point should not allow the hand to slip. This effect is eliminated by making scars on the handle, or by covering it with a rubber layer. The saw can be cast or with a reversible blade. In the latter case, it is easy to replace the canvas.

Conventional handles are made of plastic. Prefabricated plastic handles from two halves do not have sufficient rigidity; it is much more convenient to handle a tool with a solid handle with a rubberized finger pad. The rubber insert allows you to make the grip tighter, which prevents the formation of calluses.

To choose the right hand saw for wood, you need to follow a number of recommendations. Pay attention to the following:

Target. For carpentry, you need a saw with fine teeth, which will provide high precision sawing. Carpenters need a blade with large teeth.
web uniformity. Gently bend the canvas at an angle of 30-45 ° and release it. The slightest deviations on the fold line (even within 2 mm) indicate the low quality of the metal.
Frequency of use. If you need a saw for one-time work, it is better to take a tool with hardened teeth. The service life is quite long, and you don’t have to worry about sharpening and wiring.
Price. High-quality models of leading manufacturers are much more expensive than consumer goods. But the high price is a kind of guarantee of wear resistance and durability. However, for one-time work, buying an expensive tool is not practical.

Decide on the purpose of the tool, see how it lies in your hand. Read the enclosed instructions, if any. These minimal "wisdom" repeatedly reduce the risk of choosing a bad tool.

Hacksaw – This is a manual carpentry tool that is a kind of saw. Depending on the design, it can be used to cut wood, metal, plastic, aerated concrete and other materials. The tool consists of two parts - a working blade with sharp teeth and a handle for a comfortable grip.

Varieties of hacksaws

Hand saws come in two configurations - for wood and for metal. Hacksaws for wood have large teeth and can also be used for cutting aerated concrete and drywall. Saws for metal are capable of cutting almost any material, including wood, plastic, drywall, aerated concrete, polystyrene foam, polystyrene, etc. They have small cutters, so the cut is neat, and small chips are formed.

Wood saw

The hacksaw is one of the most ancient tools. It appeared much earlier than the modification for working with metals. There are several varieties of it:

Classic.
Vykruzhnaya.
Thorn.

classical

which is also called wide or regular, is a standard manual sawing tool. It is intended for longitudinal or transverse cutting. With it, you can shorten the board or cut down a branch. This is a standard carpentry and carpentry tool. Such a saw provides fast cutting, while the cut is quite rough and large chips are formed. Its teeth have a triangular shape, the pitch between them is from 1.5 to 6.5 mm.

Round or narrow

This is a more narrowly focused tool. Due to the small width of the web, it can be used to cut curved elements. The main purpose of such a tool is not the usual pruning, but the possibility of sawing sheet material when work is required on a strictly defined contour. A narrow blade is more maneuverable and allows you to bypass lined bends, which cannot be done when using wide hacksaws. These saws are much lighter and more compact. They may have teeth on both sides that differ in size. This makes it possible to create a cut of various purity. By choosing smaller teeth, you will be able to make a smoother cut.

spiked

Also called pasovochny or obushkovy- This is a specific tool, the main purpose of which is to remove protruding spikes and grooves. These saws are used by carpenters and joiners to get clean and smooth cuts. The blade of this tool is the thinnest, so the cut is narrow. In order for the canvas not to constantly bend to the side opposite to the incisors, a butt clings, which increases rigidity. Due to the presence of the butt, it is impossible to make a deep cut wider than the height of the blade. Such a tool has fine teeth in the shape of an isosceles triangle. It is used exclusively for transverse cutting. The thickness of the working part does not exceed 1-1.5 mm.

Types of teeth

Wood is a specific material that can be difficult to cut depending on the direction. In this regard, hacksaws are divided into three categories:

For longitudinal cutting.
For cross cutting.
Universal.
Specialized.

For longitudinal cut

The hacksaw has special teeth that are inclined forward under acute angle. As a result of movement, they provide cutting of wood fibers and chipping of sawdust. Such equipment guarantees the fastest possible work in cases where it is necessary to divide the board in the direction of the fibers. In this case, rather large sawdust is formed, the size of which depends on the height of the teeth. The larger they are, the faster the work goes. If it is necessary to cut even a thin branch, such a saw will be ineffective.

For cross cutting

A hacksaw with straight teeth is used. Such a tool will be an excellent choice for trimming boards or cutting branches in the garden. It is he who is suitable for harvesting firewood or shortening the handle to a shovel. The vast majority of all hand-held woodcutting equipment is crosscut.

Universal

This is a modification of the transverse, but with a special sharpening of the teeth, which allows you to compensate for the lack of the obtained angle of attack to the wood fibers. There are also specialized types of hacksaws, in which the teeth are arranged in groups of several pieces. There is a small gap between groups. This tool is designed to work with raw wood. The indentation between the cutters ensures that wet chips are cleared away on their own without the need for manual cleaning.

Specialized

Especially for working with aerated concrete, a special specialized design with victorious soldering was developed. This tool provides a more rigid plunge into the surface and faster sawing of hard materials. Such a hacksaw is quite suitable for both transverse and longitudinal cuts.

When choosing a saw, you should pay attention not only to the direction of the teeth, but also to their size. There are 3 types of incisors:

2-2.5mm– for accurate work with small details.
3-3.5mm- for medium-sized workpieces.
4-6 mm- for rough cutting of timber and firewood.

Hacksaws for metal

The metal hacksaw has special design, which consists of a cutting blade and a frame for its fastening. The sheets are interchangeable. They have small teeth that are specially hardened. Itself is densely made of high-speed steel, but nevertheless, as a result of operation, it is erased quite quickly, there are also cases of breaking of individual teeth. The dimensions of such a tool rarely exceed 400 mm in length. The depth of cut is limited by the height of the frame.

At the ends of the canvas there are through holes, through which the mount is inserted to the frame. It should also be borne in mind that the direction of the teeth for cutting is of particular importance, so arrows are affixed to the blades, guided by which you can properly fasten. If you confuse the side, then the speed of work is significantly reduced. A hacksaw for metal allows you to adjust the length of the installed blades. There are also professional saws that allow you to adjust the slope of the edge, turning it at an angle of 45, 90 and 180 degrees.

Manufacturers of cloths produce them with teeth on one side and on both sides. By choosing the latter, you can turn over the spent cutting edge. This will allow you to get a sharp and ready-to-use tool again. When working with a hacksaw for metal, a high-quality and smooth cut is ensured. The tool can cut almost any material except stone and concrete.

It is worth noting that for the frame of a hacksaw for metal, special blades are produced for working with wood. This allows you to significantly expand the scope of the frame. It should be noted that in this configuration the tool is still inferior to a specialized saw for wood.

When choosing any tool, regardless of the material it is intended for sawing, you should pay attention to the size of the teeth. The larger they are, the faster it will be possible to cut the required workpiece. At the same time, the quality of the cut will turn out to be quite rough, and large sawdust will form. Small incisors will allow you to get the most flat surface, while the sawing process will take much longer. The delay is due to the difficulty in removing sawdust and the lower efficiency of cutting into the material.

It is also worth noting that the convenience of work depends on the handle. The softer and more pleasant it fits in the hand, the easier it will be to use the tool. Rubberized handles are the best. They do not slip, and besides this, they significantly reduce rubbing.

Unusual hiking hacksaws

A hacksaw is not only a metalwork and carpentry tool, but also an effective tool for cutting firewood. With it, it is much easier to divide a tree trunk into decks than in the case of using an ax. In this regard, there are specialized camping saws that are compact in size. Their main task is to provide an easy transverse cut. The vast majority of these models fold like a regular pocket knife.

There are also universal pocket hacksaws, the design of which provides for folding the working blade inside the handle, as is the case with a mounting or clerical knife. Such a tool is designed to work with wood and scrap metal. It is convenient to carry, but the effectiveness of the application is minimal and will allow you to perform the simplest tasks.

Very convenient to carry is a compact metal file, which is a small handle worn on the canvas. Such a tool is the most compact and inexpensive. During operation, there is a high probability of breaking the canvas, because it constantly bends.

Let's start with hacksaw for wood and other materials of similar hardness. First of all, let's decide on the "scale" of work - based on them, we choose web length. If you have ever sawed a log large diameter with a short hacksaw, then you are already in the know. And in general more long canvas“faster” simply because more teeth pass through the cut in one move, and sawing with sweeping movements is more convenient than poking back and forth with a “butt” long blade.

Tooth pitch determines both the sawing speed and its cleanliness: coarse sawing is faster, but coarser than fine sawing. A common measure of pitch is in teeth per inch (TPI). That is, the smaller the step number, the larger the tooth. You can also see hacksaws for sale with a variable pitch - it is indicated by a double number, for example - 11-13 TPI. For large workpieces, rough cuts, or firewood preparations, select coarse pitch up to 6 TPI, between 7 and 9 TPI for medium-sized workpieces (the saw will jump less), for fine work and small workpieces, 10 TPI and beyond. At the same time, put a notch in your memory: it is worth choosing a hacksaw that has interchangeable blades of various types, it is cheaper than buying several assembled hacksaws.

canvas can be both "raw" and hardened. The “raw” one will become dull faster, but you can even sharpen it with a file: for infrequent work on soft and dry wood, this option is quite working, and a hacksaw will cost less. In addition, on a non-heated canvas, you can always correct the wiring by making it wider or narrower. But hardened blades with large volumes of hard work are better - you don’t have to constantly edit them ... but on the other hand, a dull blade will have to be sharpened on a special machine. Especially if it is a blade with a triangular sharpening (often called "3D") - they cut very well, but they are more difficult to sharpen.

Hacksaws for metal for the most part, this is a development of the idea of \u200b\u200ba conventional bow saw - they have the same narrow blade stretched in a frame. Here, when buying, pay attention to the reliability of the frame and the convenience of the tension mechanism itself.

And in any case, do not forget about ergonomics: the handle of the hacksaw should be “on hand”, of course.

A hand saw, at first glance, is a fairly simple tool that does not require special maintenance. Nevertheless, few people know about the criteria for choosing a saw and its types. Like other tools, a hand saw has certain signs of quality and characteristics.

The main parameters of a hand tool for sawing wood

The hacksaw is one of the most necessary tools in the inventory of every man. This device allows you to easily change the size of wood and plastic lumber. With the help of a hacksaw, you can perform a lot of operations in construction, file branches in the garden, shorten the poles of the fence, and so on.

But when buying this, at first glance, a simple tool not everyone thinks about how to make the right choice and what criteria should be taken into account. The hacksaw has its own special parameters that can affect the quality of work. There are four basic parameters when choosing a hacksaw: blade length, tooth size, steel type and handle type.

Blade length

For convenience, the length of the hacksaw blade is chosen so that it is twice the size of the material at the cut point. This allows you to effectively remove sawdust during operation due to the fact that all the teeth of the blade will come out of the board / log. In addition, this ratio of the size of the hacksaw and lumber contributes to a greater range of hand movement. This, in turn, takes much less strength. In construction, a universal hacksaw with a blade length of 45–50 centimeters is most often used. To work with small bars and boards, a canvas 30–35 centimeters long will suffice.

Tooth size

This is perhaps the most important parameter. After all, the speed and accuracy of the cut depends on the size of the tooth.. The number of teeth per inch of blade is commonly referred to as TPI. For more accurate work with the material, it is necessary to use a hacksaw with a large TPI coefficient, that is, with a large number of teeth. When choosing a blade with a TPI of at least 7–9, and a distance between the teeth of no more than 2–4 mm, the surface at the cut will be more even and without torn edges. To work with big bars And garden trees A blade with a TPI of 3–6 and a tooth spacing of over 4mm will work well. The use of such a hacksaw will reduce the effort expended and increase the speed of cutting the working material..

Tooth Pitch Correspondence Table

1 TPI = 25.5mm	10 TPI = 2.5mm
2 TPI = 12mm	11 TPI = 2.3mm
3 TPI = 8.5mm	12 TPI = 2mm
4 TPI = 6.5mm	13 TPI = 2mm
5 TPI = 5mm	14 TPI = 1.8mm
6 TPI = 4mm	17 TPI = 1.5mm
7 TPI = 3.5mm	19 TPI = 1.3mm
8 TPI = 3mm	22 TPI = 1.1mm
9 TPI = 2.8mm	25 TPI = 1mm

Tooth sharpening

The usual triangular shape of the hacksaw teeth is taken as standard. The teeth are made in the form of an acute triangle or isosceles, depending on the purpose of the cut. Such a blade can be sharpened with particular ease by repeating all the corners of the teeth. Such a blade can be used for both longitudinal and transverse cuts to avoid coarse notches.

Video: self-sharpening the teeth of a hacksaw for wood

And here modern hacksaws, unlike the classic ones, have hardened teeth with a non-standard trapezoidal shape. Such saws are endowed with increased strength and are resistant to wear. Their steel cannot be sharpened, and it is very difficult to keep all the angles of the sharpened teeth.

Steel type

For the production of hacksaw blades, it is most often used stainless steel high grade. Usually saws for wood are made of steel with a hardness of HRC45. Very often, manufacturers combine steel in the canvas. In a hacksaw with a combined blade most of also made of steel 45, but the cutting part of steel 55 and 60. When hardening the cutting edge, wear resistance increases. This type of tool can be easily distinguished from a regular hacksaw by its dark hardened teeth.

The first forged saws were made back in Ancient Greece. Forging gave high hardness of the metal and improved the quality of the tool.

Handle type

The ease of use of the saw depends on the correct choice of the saw handle. Handles are made of wood or plastic. A very important point - the surface at the grip should be such that the hand does not slip. This is eliminated by making scars on the handle, or by covering it with a rubber layer. The hacksaw can be both a classic cast and a reversible blade. The latter allows you to replace the canvas, which is very convenient.

How to choose a hand saw

By combining all the basic parameters of the saw, everyone can easily decide for themselves which one suits them best. When choosing a tool, you need to decide for yourself which saw is more suitable - carpentry or joinery. If the most important thing is the speed of cutting, then, of course, you need to purchase a carpentry. The carpenter's saw has fewer teeth per inch, which contributes to faster productivity and removal of sawdust. If the priority is the accuracy of the cut, then you should use the carpentry.

The quality of a hacksaw can be determined simple ways. First you need to visually verify the evenness of the canvas. Then you need to bend the canvas with a little effort and release it as soon as resistance appears. After the blade wins back and calms down, you should again look at the evenness of the blade. If it deviates slightly from its original position, then the tool is of poor quality and it is not recommended to buy it.

If you need a rip saw, you need to choose a hacksaw with sharp teeth. The teeth of such saws are sharpened only on one side, so the cut will be made only in one direction - away from you.

Rip sawing cuts parallel to the grain of the material. For ripping Circular saws and bow saws work well.

Hacksaws for cross cutting are the most common. Their teeth are made in the form of an isosceles triangle and sharpened on both sides. This allows cutting in both directions..

In crosscut sawing, the material is cut across the fibers. For such sawing, classic hacksaws, hacksaws with a back, and with a large thickness of the material, two-handed saws are suitable.

The price of the saw is also an equally significant factor when choosing. A more expensive hacksaw gives a guarantee of reliability and wear resistance. Those saws that are much lower than the average price are made from cheaper raw materials and do not guarantee you long-term service.

What types of hand saws are supposed to be used

The classic hacksaw is the most common of all. It has a long and wide canvas. If the blade is too long, the hacksaw may tilt to the side when cutting. Extra care must be taken to avoid deviation of the cut line from the initial markup. Such a hacksaw is suitable for working with timber, boards, chipboard and so on.
Hacksaw with back. This saw model has a rigid edge-nozzle, which minimizes the frequency of vibration of the blade. And also such a hacksaw has smaller teeth and a higher TPI coefficient. They are designed for sawing plywood, chipboard with a layer of coating and sawing profile strips.
Saws for fine sawing have an adjustable handle. They are needed for cutting grooves, grooves and sawing straight and profile strips.
Circular hacksaw, or hacksaw with a narrow blade. It is also used for cutting grooves, as well as for sawing parts with rounded places and large holes.
A bow saw is well suited for cutting knots and rough parts of the material, as well as for sawing parts out of plywood and wood. Such a hacksaw is distinguished by a thin blade fixed on both sides in a frame. It is worth noting that you need to work with it very carefully because of its increased fragility.
Award - has two handles. The appearance of such a saw is in many ways similar to a planer. It is used for cutting spikes and grooves, deepening holes and slots in materials of any hardness.
Garden saw with a curved blade. Most often, for greater convenience, they are foldable. This saw is great for gardening. The saw blade is made of chrome steel. Widely spaced teeth with an inclination towards the handle will allow you to conveniently cut knots and branches, focusing on yourself during sawing.
A two-handed saw has the highest performance. It has two wooden handles. To cut with such a saw for greater efficiency need two. A two-handed saw is often used for sawing large logs and trees.
Manual or pocket chain Saw- is a small piece of chain with two handles at the ends. It is convenient to work with such saw both to one, and together. A log or bough is wrapped around a chain and cut with the help of handles. A hand chainsaw, like a folding saw, is well suited for gardening.

Photo gallery: varieties of hand saws

This classic hacksaw is easy to sharpen This hacksaw has hardened teeth and increased wear resistance A hacksaw with a back or a butt minimizes blade vibration during operation A hacksaw with a narrow blade is well suited for cutting holes and grooves
This saw has an adjustable handle, which will allow you to work under right angle A bow saw is good for sawing plywood parts. This type of saw is similar to a planer and is used for cutting spikes and slots. A two-handed saw is suitable for sawing large logs.
garden saws with a curved blade, well suited for cutting knots and small branches of trees
The hand chainsaw is compact and well suited for sawing logs on a hike and branches in the garden.

Thus, having carefully studied all the nuances regarding hand saws, everyone can choose for themselves the most suitable option. Right choice tool will provide you with high-quality and pleasant work.

Every real master (even a home master) always has a convenient and multifunctional circular saw. But sometimes there are such types of work when you need to saw off only one part, or just do small amounts of work, and get electrical device I do not want. In this case, a hacksaw blade will help you out. But how to choose a good hacksaw for wood, which will be easy to use and will easily “gnaw through” any type of wood, we will consider further.

By right, it is the saw that can be called the mother of all hand tools. Since the moment people understood the importance of iron and created the first saw, the tool has changed many times and already has a dozen "sisters" that can do any kind of work.

Let's take a closer look at what each of these parameters should be.

Hacksaw blade - what it should be

The main part of the tool is the canvas. The first thing you should pay attention to when choosing a hacksaw for wood is the length of the blade. Much will depend on this, at least even the possibilities of application.

At the same time, the larger the canvas, the more it will spring, which will complicate the process, especially when working with maple, ash and oak.

If you plan to cut bars or narrow laths, a tool with a length of 25 to 30 cm is enough for you. When planning to use a tool for serious work in construction, give preference to tools with a blade length of 50 cm.

When choosing the length, one should be guided by the rule that the length should exceed the diameter of the element being processed exactly 2 times.

If you do not follow this recommendation, you will complicate your work. The teeth of a short hacksaw will only stick in the wood, and it will be very difficult to move such a saw to free it from sawdust.

Working in an uncomfortable environment will cause fatigue sooner than if you followed all the instructions.

Usually the width of the hacksaw blade is from 10 to 20 cm. Models with a smaller width have many disadvantages, since they are impractical and will immediately fail. But keep in mind that tools that are too wide will not give you comfort.

For the manufacture of hacksaws, alloy steel is used, which differs from the usual high content of carbon and silicon of the following grades:

65G, 60 S2A.
8 XF, 9 XF, 9 XS.
Y7, Y7A, Y8, Y8A, Y8G, Y8GA, Y9A, Y10.

The metal is hardened with a special effect of a magnetic field, due to which a high-frequency electric current appears.

When spreading on the surface, it warms up upper layer metal, after which they are hardened cold water. According to the standard, the hardness of the metal should be 45 HRC, but it is better to give preference to products whose web hardness will be from 55 to 60.

A high-density hacksaw will have good flexibility, but the teeth will be stable. Externally, upon inspection, you will determine the quality of the tool by the dark shade of sharpened teeth.

What should be the teeth

Another an important factor The performance of the tool and its work when sawing is the size of the teeth. Such an indicator as sawing accuracy is designated TPI, which means the number of teeth per inch (2.54 cm).

In between technical parameter following link:

A blade with larger teeth gives you high speed when working, but in this case, expect a sloppy and rough saw cut.
For hacksaws with fine teeth, the cut will be clean and accurate, but the speed of work will be several times lower.

When you decide on the size of the teeth, be guided by the type of material being processed.

When working with material such as chipboard. Where high cut accuracy is needed, you should take a tool with an indicator from 7 to 9, and for logs in the garden where the cleanliness of the cut does not play important role, an indicator from 3 to 6 is suitable.

If we compare a normal and a hardened tooth, the difference will be that the usual one does not get dull for a long time in domestic use. But a hacksaw with hardened teeth cannot be re-sharpened, so when the quality of the cut decreases, you will have no choice but to simply throw it away.

The advantage of a regular tooth is that it can be sharpened. This work is periodically carried out using a file marked with an accident ( for sharpening saws). For sharpening, you need to run a file over each tooth several times.

There are three types of hand saw depending on the type of teeth:

Some types of instruments have teeth that resemble a trapezoid in shape. This decision has made a new generation of hacksaw blades that are wear-resistant and an order of magnitude stronger.

But it is worth considering that sharpening such a blade is a difficult task, since it is difficult to shape the complex figure of small teeth. This greatly reduces the life of the tool, at the end of which you will have to change the blade or choose another good hacksaw for wood.

Now the market is increasingly seeing new models of hacksaws that are designed for cutting not yet dried. Small chips easily pass between the teeth of the cut, and do not impede the work.

narrow

This is a small saw, which is a flat straight blade and a handle. With its help, you will be able to perform a series small jobs: cut out curved parts, make a through cut, etc.

It is made from a blade with double-sided teeth in the form of a triangle, sometimes with parallel sharpening. The disadvantage of the tool is that when pressed during operation, the canvas may deviate from the specified direction.

Standard

A hand saw with standard parameters can have any type of teeth and is most often equipped with several blades for changing, which have different execution and type of teeth. Despite the versatility declared by the parameters, such saws are not suitable for making furniture.

with a butt

both narrow and standard saws with an increase in the stiffness threshold, they are prone to bending. To avoid this, it will be effective to use a tool with a butt, which will act as a stiffener. The presence of such a "clamp" will not make it possible to make a cut larger than the width of the web, as it will prevent the web from passing into the tree to a greater depth.

Luchkova

A saw of this type is a more bulky device, which is a manual version of a jigsaw. Due to the fact that the design is solid and its threaded connection handles, such saws can easily overcome knots, making cuts according to patterns and radii.

Depending on the intended type of work and the design of the saw, there may be:

transverse– for sawing across the grain of the tree.
Swinging- for cutting along.
Fillet- for creating holes, roundings and sawing figured type.
spiked- for cutting connecting spikes and cutting out simple geometric shapes on the workpiece.

Only a bow-type hacksaw can perform all these functions without additional tools.

The procedure for choosing is quite simple:

Now about the handles. They are usually made from plastic. Prefabricated handles are made from two plastic halves, which are not very rigid. It is much more convenient to work with tools that have a one-piece handle equipped with a rubber backing for the fingers. With a rubber insert, it will be much more convenient for you to make a grip, thereby protecting yourself from the formation of corns.

Even on sale you can often find a tool with a flip and a standard handle. The first option is convenient in that it is possible to replace the canvas with a new one in case of expiration of the service life.