Bench grinders are purpose built for sharpening cutting tools, shaping metal and grinding metal. If you replace a grinding wheel with a wire brush wheel you can even clean and polish work pieces for a smooth finish. Jet bench grinders are high quality machines with quality parts such as pre-lubricated ball bearings and UL listed motors. A reader recently asked if he could use an angle grinder in place of a dedicated polisher to polish his car. It's a great question and often one that's often blurred especially with the myriad of polishing attachments for drills coming out from China Inc.

An angle grinder is a tool that is used for grinding, polishing, cutting and sharpening surfaces. Once you have an angle grinder machine, you can purchase different discs that you can keep changing depending on what you intend to do. In this case, we shall talk about an angle grinder in reference to a rotary polisher since they work the same way.