The saw is a tool used to cut wood and, sometimes, other materials. It is a saw that has a long, toothed blade, which is attached, in its widest part, to a handle that is usually made of plastic or wood.
To use the saw, the person must take the tool by the handle and move the serrated blade over and over again through the material they intend to cut, always trying to keep it in the same position, so that it does not leave the line along which they want to cut. make the division. Thanks to the teeth, said material will be worn away until the cut finally occurs.
For example: “Be careful when you use the saw: you can cut your hand” , “With a log, a saw, some nails and a hammer, my uncle built a table for the garden” , “I'm going to buy a new saw because This one has a very worn blade.”
Types of saws
Let's look at the main types of saws on the market, in addition to the so-called common or universal saw, which is defined above:
- Pointed : It is also known as a needle or jigsaw , and is characterized by having a thin and very short blade, making it look like a knife. The objective of its particular size and shape is to allow the user to make circular cuts more easily than when using a common saw. On the other hand, they also tend to have irregularities in the size of their teeth, and this serves to draw angles greater or less than 90°.
- Rib saw : this type of saw has a reinforcement in the upper sector of its blade (the opposite to the one with an edge), and this prevents the blade from bending while in use, something that makes it easier to work with very hard materials and that Helps make straight line cuts. In short, the rib saw offers significantly greater precision than the previous two. In addition to its reinforcement, it is characterized by having a rectangular blade, instead of trapezoidal, and by having a smaller extension, which affects the depth of the cuts.
The edge
After using a saw for a long time, its blade begins to dull, something that happens with any tool of this type. In this case, the characteristics of the edge make it somewhat difficult to recover its sharpness; However, despite the teeth it is possible to improve the situation a little to extend their useful life for a while, until the time comes for the inevitable replacement.
To sharpen the edge of a saw, it is recommended to use a file or, failing that, sandpaper; It is important to choose the materials taking into account the dimensions of the channels and teeth, as well as the thickness of the cutting edge. Its application must be done on the sides of the sheet, since otherwise the elements would be destroyed and would not cause any effect. The time to buy another saw comes when sharpening does not improve the performance of the tool.
Expressions with the term saw
In some countries , the expression “use the saw” or similar is used when a person claims the position or position held by a superior. The symbolism refers to “sawing the floor” so that the other individual “falls” and thus the subject takes his place: “Martín wants to use the saw and unseat Enrique from management.”
In other nations , they talk about “making a saw” when a group of people collect money with a common goal: “The neighbors will make a saw to pay for the young woman's trip to the world championship.”