Published at Monday, 18 March 2019. Industrial Machinery. By Nannette Fournier.
In the past, table saw blades were meant to cut only wood, but they are now able to cut through metal, plastic, and other materials. Mind you, most blades are still fabricated out of metal, but some also feature special alloys and materials in the teeth, and various carbon composites for the body. Before deciding on a blade, you need to look at several characteristics such as its diameter, the material it's made of, the material it's designed to cut, number of teeth, maximum speed, and price, among others. Of course, the blade needs to match your table saw as well. Now, let's see how you do all that.
Another option to think about is the magnetic switch. You can read more about this on my page about safety features, but in short this will prevent the motor from dangerous automatic restarts after power interruptions. A magnetic switch is more common on cabinet saws, but you may want to consider an upgrade on your contractor as well.
For instance, the teeth on blades that cut through wood are made out of steel or carbon steel, which ensures their durability. Then there are masonry blades, which have diamond-tipped teeth, and you can also find blades that are made to cut through aluminum and steel. Such blades have teeth that are treated with hardened metal or tungsten carbide. Finally, there are blades designed to cut through PVC and acrylic materials, which have teeth made out of low-temperature tungsten carbide.
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