Black & Decker RTX-1 2 Amp 8,000 to 30,000 RPM Variable Speed Rotary Tool with 55 Accessories Variable speed (8,000 to 30,000 rpm) rotary tool with powerful, high-torque motor that won't bog down Separate variable-speed dial for set-and-forget convenience; front on/off switch maximizes control Rubber overmolded grips for superior comfort and control Includes assorted bits and collets, kit box 2-year warranty