Best Die Grinder – Die Grinder Reviews and Ratings ...
Best Die Grinder. Typically, a die grinder uses a 1/4 inch collet for holding a variety of tips. However, some of the smaller units such as cordless ones and pencil grinders use a 1/8 inch collet. They work with a wide variety of tips including grinding wheels, carbide cutting tips, sanding disks, and cutoff wheels.