SPTA 1" (25mm) Brown 80 Grit Abrasive Buffing Polishing Wheels Burr For Proxxon Dremel Rotary Tools-1/8"(3mm) Shank Pack of 50Pcs Compact and powerful rotary tool with variable speed adjustment, ideal for hobby, craft, jewelry, woodworking and more Includes 161 piece accessory set with tools for sanding, grinding, drilling, polishing and cutting Collect size:1,6 mm.2.3mm.3.0mm .3.2mm Two speed control allows you to set your speed at 10,000 or 37,000 rpm with a flip of a switch Voltage:110V/60Hz