Cordless Rotary Tool 10.8 Volt Lithium ION, 5,000-35,000 RPM/ Min. Speed, 0.8/ 1.6/ 2.4/ 3.2mm collect Capacity, High precision Multi-tool, Sanding, carving, engraving, cutting, cleaning and polishing, Housing cap, Shaft lock button, Soft grip, On/ off switch and variable speed dial