A table saw is a saw that is used in woodworking with a circular saw blade. The blade of the saw passes through the surface of a table that plays the role of a good support for the work piece. In some of table saws, the depth of the cut is adjustable. This could be done by moving the blade up and down. When you want to cut deeper in the material, you need to move the blade up and vice versa. In these saws even the angle of cut could be controlled. This is done by adjusting the angle of blade. Nowadays that new technology has been developed risk of injury caused by table saws reduced. For example, to prevent fingers from being severed is to use push sticks are substitutes for fingers to apply pressure on. Also, most of them are equipped with dust extractor which facilitates a healthier working environment.