The VSP-320 Electric Polisher is designed for portable grinding, shaping and polishing. This center water-fed, handheld grinder accepts our 3M brand diamond discs. Safely operated through the in-line ground fault interrupter circuit (GFIC). The VSP-320 comes with two types of handles: the C-handle and a reversible side handle. The variable speed control allows you to set any speed between 700 and 2500 RPMs.