The first thing to know when choosing a saw blade for a jigsaw is their classification. The difference is that each type of tool is intended to handle certain material.
Recognize them by the color of the liner, where to apply the main markings with numbers and letters. Grey color corresponds to working with wood and blue for metal products. Shank, painted red, used for cutting polymers and other similar materials. Moreover, saw not only paint different from each other, and the size of the tooth. If you look closely, their value would immediately tell about the possibilities of the canvas. The smaller the tooth, the denser and stronger the material that they will be able to cut it.
Most often files for a fret saw used for cutting planks of wood. It’s not a particularly strong material here and will fit almost any standard nail file. However, it is best to use a cloth designed specifically for wood products. This option will ensure not only high speed but also ease of use. Also consider that for fast and qualitative cutting of wood there are two types of tools. One of them is designed for cutting across the boards, and the other along wood fibres. In the first case applied the canvas with a straight tooth, and the second with an oblique.
In this situation, normally used a canvas with a large tooth. But it is worth to notice that they leave a rough cut with lots of defects. Therefore, these nail files are used for accelerated construction, which do not require exceptional appearance treatment. For example: scaffolding, temporary fences, summer sheds and other similar buildings. The configuration of the teeth greatly affects the possibilities of the tool. The more small teeth are present on the blade, the higher the quality of the cut. If the teeth a little and they’re large, then this cut will happen very quickly, but will look very sloppy.
To choose the right blade for the job with durable materials, you should understand some rules – paintings must correspond to their purpose. The stronger the product, the shorter should be the tooth of the cutting tool. For the strongest metal objects, the best option would be the blade for fret saw designed to cut steel. Moreover, it is perfectly suitable not only for non-ferrous alloys, but also soft – phenolic resin and ebonite. This blade has many small teeth and blue color shank. In conclusion, I should add that there are universal leaf labeled T234X, T123X. They can be freely used for cutting metal, but also less durable – wood with plastic.