Hand hacksaw for metal: a universal assistant to a home craftsman
A hand hacksaw for metal is a special tool that is used for cutting metal blanks, ceramics, wood, plastic, foam and organic products. Today there are several varieties of such devices that have certain characteristics and individual parameters. This article provides detailed information about the design features, types and rules for choosing a universal tool.
Varieties of hacksaws, characteristic features of products
A hacksaw is a carpentry tool, it is a kind of saw. Its main purpose is to perform cutting of blanks and products made of different materials.
Saws are divided into manual devices and electric hacksaws. The latter option is equipped with an engine, which provides fast and less labor-intensive work. Such a reciprocating hacksaw can be presented in the form of a mains or battery tool. The first type of device is powered by an electrical network. This hacksaw is quite a powerful device. Its only drawback is the presence of a cord that limits the area of action.
Saber tools can be divided into electric hacksaws for metal, wood and stone, their canvases differ in length, shape, size and number of teeth.
The cordless hacksaw is a more mobile device that runs on battery power. This type of device is characterized by lower performance. One battery charge is not enough for long-term operation of the tool.
Depending on the purpose, there are manual hacksaws for wood and metal. The first type of device consists of a working cloth equipped with sharp teeth and a handle for easy grip. This tool is often used for cutting drywall and aerated concrete.
A hand hacksaw for wood can be classic, cut-out and studded. The first option is used for longitudinal or transverse cutting of the workpiece. The teeth of the web have a triangular shape and are arranged in increments of 1.5-6.5 mm. To increase the efficiency of sawing, you should study the information on how to sharpen a hacksaw.
The cut-out saw is used for cutting curved parts, which is ensured by a narrow blade with small teeth, which can be located both on one side and on both sides. The spike device is used to remove protruding grooves and spikes in order to obtain a clean cut.
A metal hacksaw is a universal tool that is able to cut a workpiece from any material, including plastic, wood, foam, aerated concrete, etc. The working blade of such saws has small teeth, so that the cut turns out to be more neat, clean. In the process of work, small chips are formed.
Hand hacksaw for metal: tool design
The tool for working with metal has a simple design. It looks like a bracket, between the ends of which a canvas is fixed in a stretched position. The device consists of a frame, a cutting element and a handle.
The frame is intended for fastening the canvas. It can be made of different materials. Frames made of high-strength composites are used for cutting dense metal blanks. The design of the element is determined based on the conditions of its use. If it often becomes necessary to cut in hard-to-reach places, you should purchase a small device that makes it possible to adjust the slope of the canvases.
The cutting part is represented by a thin steel band. The blade is installed in the frame in such a way that the teeth are on the opposite side of the handle. It is the most fragile element of the structure, therefore, when performing a cut, it is necessary to act very carefully and carefully, since a careless attitude can lead to a breakdown of the product.
Wedge-shaped teeth are located on the cutting blade. When choosing a device, you should pay attention to whether the cutters have been subjected to hardening, which increases the service life and productivity of the tool. This will also influence the decision of how to sharpen a hacksaw (information can be found on the Internet). It is better to give preference to red-hot, made of nickel-plated steel and having a dark color or bimetallic, painted in any tone options.
Important! For cutting hard products, we should choose webs with small incisors, and for soft workpieces, it is recommended to use a cutting element with large teeth.
The handle is an important part of the tool, thanks to which convenience and safety are ensured during the operation of the hacksaw. The best is a two-component handle, which is equipped with durable rubber and special soft inserts. The handle can be placed on the side or on top of the hacksaw.
Varieties of hand saws for metal, depending on the scope of use
The main purpose of a manual hacksaw for metal is to perform cutting of blanks made of durable metals, cutting seams and grooves, trimming products. This tool can also be used for sawing objects made of ceramics, wood, plastic, organic and foam.
Depending on the scope of use, hand hacksaws for wood and metal can be divided into three types: household, professional and hacksaws. The first version of the tool is intended for home use when solving simple tasks. The models are characterized by simplicity of design, ease of operation. Such products are made in a wooden frame located longitudinally to the canvas and combined with a wooden handle. The cutting element is screwed to it by means of screws.
Professional-level hand saws are equipped with a durable and comfortable rubberized handle, so that the tool can be used for a long time. The cutting blade is installed at a certain angle, which allows for cuts of unusual shape. This type of tool makes it possible to create a variety of cuts of workpieces, is characterized by high quality of construction and durability.
The hacksaw handle looks like a bracket. Thanks to this configuration, the tool can be used in hard-to-reach places, which is clearly shown in the photo of metal hacksaws. Such a device is ideal for performing internal saws. The cutting blade is attached only on one side. There are folding versions of a mini hacksaw for metal.
Options for a hacksaw blade for metal
Cutting blades for hand hacksaws on wood and metal can be made of different materials. The most economical and lightweight option is a carbon steel blade. Such a canvas is used for household models of saws. It has a low cost and is characterized by a short period of operation.
Toothed cloths with partial heat treatment are considered to be a more technological, wear-resistant and durable option. The high-speed elements are cobalt steel blades. Such canvases are characterized by flexibility and fairly good strength. They are used for cutting solid workpieces. At the same time, high quality and cutting speed are ensured. This option is also often used for electric metal hacksaws.
Hardened blades are suitable for directional cuts. It is advisable to use them for cutting at a certain angle.
Bimetallic cloths made of carbon steel obtained by cold-rolled method are distinguished by high strength and reliability. A strip of high-speed steel, on which the incisors are located, is welded onto its surface by electron beam method.
Cutting blades are classified according to the type of saw layout, which can be made on the web or on the cutters. In the first case, the teeth are removed from the edge of the saw alternately to the left and to the right with a bend height of 2-3 mm and a deviation of 0.25-0.6 mm. This layout is typical for canvases with small incisors.
When wiring along the incisors, the teeth of the web are bent in different directions. Alternation is performed according to the step size. With a small value, 2-3 incisors are withdrawn, with an average of 1 tooth to the left and 2 to the right, the other three are in place. For a large step, the removal of the incisors is performed alternately.
Canvases can be one-sided and two-sided. In the first case, the incisors are located on one side, and in the second they are on both sides of the canvas.
Non-standard types of metal hacksaws
A diamond string can be used for cutting hard alloys, ceramics, stone, concrete and metal. The element is made of alloy steel, which is coated with a diamond coating layer of 2 mm. There are loops on the ends of the string, which are intended for fixing the product on the hacksaw frame.
The diamond thread is able to cut the workpiece efficiently, quickly and effortlessly. Her work can be compared with a professional version of a metal hacksaw. However, the cost of a diamond string is much lower. The thread cuts a solid workpiece with a depth of 1 mm in 1 minute. A glass product 0.5 cm thick will be cut in 40 seconds. A diamond string can cut a stone in 30 seconds at a cutting depth of 1 cm.
Important! For high-quality and convenient cutting of blanks, the thread and material should be moistened before starting work, repeating the procedure during execution.
Another option for a hacksaw blade for metal, the price of which is much higher, is a thread made of steel. Its surface is covered with tungsten carbide. The products are produced with a length of 300 mm and a diameter of 2.7 mm. Such a thread is capable of performing high-quality, accurate and accurate cutting of the workpiece. With its help, you can make a curved or circular cut.
The main criteria for choosing the right hand tool
When choosing a tool, you should be guided by certain characteristics of the elements. A high-quality and reliable device is performed in accordance with the requirements of the current GOST standards. A metal hacksaw should be characterized by practicality. It is necessary that the execution of cuts in any direction and at different angles is carried out easily and quickly.
Useful advice! It is better to give preference to hacksaws that are capable of sawing metal not only with straight forward movements, but also with reverse ones.
The cutting blade can have a different shape of the incisors, which varies depending on the inclination of the toothed element and varies between 0-10 degrees. The pitch of the teeth is selected based on the strength and thickness of the material to be processed.
It should also be borne in mind that when working with a workpiece, no more than 3 teeth can be applied to it at the same time, provided that the cutting is carried out at right angles. To cut soft workpieces, it is enough to purchase a tool with a tooth pitch of 3.5 mm, for harder material you will need a hacksaw with incisors located at a distance of 5 mm.
The size of the web is determined by the dimensions and volume of the workpieces being processed. The length of the cutting product can be 290-700 mm. When choosing a canvas, you should pay attention to its appearance. The element must be clean, smooth and able to take on its original appearance after bending. The surface must not contain cracks, damages, traces of corrosion and other defects. The most popular is a blade for a hacksaw for metal 300 mm.
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Saws are very reliable, safe to use and durable, in which the handle is represented by a solid element that does not have internal voids. Hollow options quickly fail. They break easily even with the slightest impact.
Useful advice! Choosing a hacksaw, you should take the tool in your hand, while the palm should fit the handle quite tightly.
When buying a metal saw, you should not give preference to too cheap options. At the same time, it is also recommended to abandon the purchase of expensive models, since this is not always justified from the point of view of the optimal ratio of cost and quality of the tool. The average price of a hand hacksaw for metal is 600-1200 rubles.
Rules and features of working with a metal hacksaw
To work with a hacksaw on metal, you do not need to have special skills and abilities. However, when using the tool, certain rules should be followed.
Before cutting the workpiece, it is necessary to insert the metal blade correctly for a hand hacksaw. Previously, it needs to be spread out in width. Then the ends of the canvas are installed on the seats and fixed with nuts. Proper fastening eliminates the possibility of vibrations during the use of the tool. The cutting element should ring with a click like a guitar string. However, do not over-tighten the nuts, as this can lead to breakage.
Important! The optimal tension of the web is determined when it is first screwed to the frame without subsequent intervention.
To minimize the probability of breakage of the toothed web, the workpiece must be fixed with a special vise. Such a measure will provide the product with a fixed position, which will contribute to a quick and high-quality sawing. The tool is installed on the workpiece at an angle of 30-45 degrees, which minimizes noise and vibration when cutting, forming the thinnest possible cut.
The cut of the workpiece at a right angle across the metal is carried out in exceptional cases. In this case, the evenness of the cut will be determined by the smallest angle of inclination.
For the convenience and safety of using a hacksaw, the master needs to take the correct pose. For good stability when cutting, the feet should be slightly apart. The hand with the hacksaw must be held at a right angle. It is necessary to make sure that the movements are calm and uniform. The first movement is made with little effort, which allows the cutting blade to enter the workpiece, and not slide along the cutting line.
The range of movements when performing the cut should be maximum, reaching the edges of the workpiece. Do not allow the hacksaw arc to come into contact with the workpiece. Do not use only one section of the cutting blade, as it will quickly fail. The arc should be positioned evenly, without tilting in different directions.
Important! Sharpening of hacksaws on wood and metal is not performed, since such a tool has blades equipped with small incisors, after the abrasion of which it is necessary to replace the consumables.
Characteristics of the rotary chair with a hacksaw
The rotary chair with a hacksaw is represented by equipment consisting of a saw and an adjustable stand, with which you can adjust the cutting angle from 15 to 135 degrees. The chair can be made of metal or plastic. The first option is used for cutting mouldings of small thickness, and the second – for a small amount of work.
A stand in the form of a chair is used to give the tool additional rigidity, while simultaneously acting as a limiter. A hacksaw with a blade equipped with small incisors can have a length of 290-600 mm.
When cutting the workpiece, the cutting element enters it at a certain angle, simultaneously in the vertical and horizontal plane. Thanks to such a two-plane tool, it is possible to form a bevel at the end of the workpiece of any configuration.
The device with a swivel chair belongs to the best professional-type wood and metal hacksaws. It is advisable to use it for carpentry of increased complexity. The weight of the equipment is 2-4 kg. The price of a hacksaw for metal with a chair is 2 thousand rubles.
To operate such a tool, the frame must be fixed to the work surface using screws or clamps. On the workpiece to be processed, a marking should be applied indicating the places of cutting. The product is fixed on the chair in such a way that the mark coincides with the slots on the plate. Then you need to set the degree of the angle of the saw and fix the hacksaw so that it works in the same plane. After that, the workpiece is cut.
Rating of hand hacksaws on wood and metal
A good model is the Bahco 208 hacksaw, which is a saw-handle. It allows cutting in hard-to-reach places, which is facilitated by the front loose end of the cutting element. The tool reaches dimensions of 34x10x2.5 cm with a weight of 260 g. Due to the presence of fixing screws for the web, a good cutting ability of the device is guaranteed.
A high-strength Sandflex web is used as a cutting element, as a result of which increased cutting accuracy is provided. You can buy such a metal hacksaw for 900 rubles.
The TOREH 10A 130 model is popular. The tool has compact dimensions, which are 51.5 x 13×3.5 cm, and light weight – 700 g. The ergonomic handle of the hacksaw is represented by a full-bodied rubberized product, which contributes to convenient operation. The cutting blade rotates, which makes it possible to cut at different angles. This also favors the high productivity of the tool, the cost of which reaches 500 rubles.
Receives flattering reviews from experts and buyers hacksaw Gross Pirahna 77604, which performs a clean and accurate cut. The canvas is made of bimetal with teeth made of high-speed steel. The blade length is 300 mm. Thanks to the rubberized handle, a convenient grip and reliable retention of the hacksaw is provided during its operation.
The tool has dimensions of 40.5×15.5×3.5 cm, weight reaches 900 g. The tension of the web is created using a lever mechanism, which allows you to get an accurate, straight and accurate cut. The cutting element can be installed at an angle of 45 or 90 degrees. The price of a hacksaw is 1,4 thousand rubles.
A hand saw on metal is a necessary tool for a home craftsman. With the help of such a device, it is possible to cut blanks and parts from any materials. When choosing a tool, you should pay attention to the quality of the cutting blade, thanks to which a clean and neat cut is provided.