The 2230 Jewelers Kit has the new SR motor, and features the No. 30« handpiece. Completely revamped and upgraded the selection of accessories with many of our newest items for metal working like Trizaxct Bands, ScotchBriteTM EXL Wheel, MetalMasterTM Wheels and Platunim White and Blue compounds. Also included is a handy rotating bur and tool holder for 3/32" (2.35mm) shank accessories. FEATURES: All New SR Motor -1/6 HP, max RPM 18,000, electronic foot control model FCT, handpiece No. 30«, 54 piece Jeweler`s Professional Accessory kit with rotating bur & tool holder.