Bench grinders are indispensable both at your private workshop and for industrial use. The device is compact and is designed to sharpen knives, drill bits, cutters, chainsaws and other tools. The grinders roughen worn and damaged blades and are widely used in repair shops and blanking production enterprises. The machine resembles a cutting saw by its design. Its construction includes a base with a fastening part, a chain and a grinding part. The principle of use is simple: the rigging is fixed in the desired position, the disc is fed to the teeth and each tooth is sharpened separately. Thanks to the convenient adjustment system this happens very quickly. If you wish to choose an effective bench grinder you should pay attention to the rotational speed of the spindle. It determines the speed and quality of sharpening. The specialists also advise to choose an adjustable grinding head, which is much more convenient while operating with the device.