About this item Variable Speed From 3,000-20000RPM Double Bearings Design Double Insulated Easy to use in any position Accepts all rotary tool accessories Lightweight design for precision Operation Multi-Use: Carving, Engraving, Routing, Grinding, Sharpening, Sanding, Polishing, Drilling and more... 6 optional standard metal bits/filing heads and 6 sanding bands, easy to change, no need tools. Light weight pen for comfortable grip and easy to use; Low noise and vibration for smooth and long-time operation Package Include: 6 x Bits (5 diamond bits, 1 emery rod with 6 sanding bands); 1 x AC Power Cord; 1 x Manual