Types, features, purpose
A hand saw is used for working with wood. However, her tasks are not limited to this. There are a large number of tasks - from clean cutting of small elements (fitting glazing beads or platbands, sawing out precise parts) to rough cutting of logs or planks into pieces. All these issues are solved using different types of hand tools that have their own characteristics and capabilities.
Expert opinion
Dmitry Levin
A specific feature of most hacksaws is the position of the blade. It is free and is held in a given plane only by the intrinsic elasticity of the metal. Sometimes this becomes the cause of marriage. To strengthen the blade, a back saw was invented (with a reinforcing element installed on the upper edge of the wide blade), up to a bow saw (with a blade stretched between two support strips, tightened in the upper part through a spacer). In addition, there are saws with a thick blade, which have increased rigidity and resistance to lateral loads.
All varieties are designed to perform specific tasks. For a clean cut, choose a tool with a small (mouse) tooth; for longitudinal or cross cutting, there are different ways of sharpening teeth. There are also versatile views that can perform a large number of operations. Home craftsmen usually choose such hacksaws, and they come with special models designed to solve special problems.
The right approach to choosing a hacksaw
The work in which hacksaws are used are divided into carpentry and joinery. In carpentry, accuracy is more important, in carpentry, speed.
Having carried out this operation, let's take a look at the place of the fold, if a slight deviation appears there, then the metal of this product is of very low quality.
The most important criterion when choosing your hacksaw is the price. Naturally, the choice is before you - a cheap Chinese hacksaw of poor quality or an expensive saw of a well-known brand. However, having overpaid once, you no longer have to constantly change the blade or buy a new tool. Major brands keep a close eye on the quality of steel and hardening used in their canvases.
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The main tasks of the teeth are the removal of sawdust and, directly, the cutting of the tree itself.
Teeth with a TPI of up to seven are fast and easy to use. Therefore, the choice of a hacksaw should completely and completely go out of your own needs.
What is a hacksaw?
In joinery, a hacksaw is a special type of hand saw designed for sawing wood, metal, aerated concrete, plastic and other materials. Scientists find mentions of the first such instruments in ancient times in the civilizations of Egypt, Greece and Rome. During the centuries-old history, the hacksaw has undergone significant changes, but has not lost its relevance and is always stored in the set of basic tools of the home craftsman.
Hacksaw device
Like any other carpentry and metalwork tool, a hacksaw has a certain structure that affects its performance. It consists of:
- A working, hacksaw or saw blade. It is made of metal of various alloys, which, together with the size, affect the purpose of the tool. Another important parameter of the working blade is the number, shape and size of teeth.Thanks to them, the surface is divided into parts using the reciprocating movements of the master.
- The working blade is attached and securely fixed to the handle or special frame. It fulfills the functions of fixation, protection and ease of use. When choosing a saw, it is imperative to take into account its ergonomics.
What should be the shape of the handle?
This part of the saw is responsible for the convenience when performing work. It is necessary that the chosen tool literally merges with the hand of the person performing the construction work and is truly comfortable. A wide variety of plastics can be used to create pens.
Usually in high quality hacksaws, grooves, special grooves and an additional rubberized pad are provided right in the body at the handle for this.