The Tip of Diameter:Φ4mm/Φ6mmRated Voltage:110V/220V,Rated Frequency:50/60HZ,Rated Input Power:180W,No Load Speed:500/18000 r/min.Packing Size:34X25X11mm.The kit comes with::1 Hanging Motor,1 Electronic Foot Control,1 Chuck Key,1 Handpiece,1 Manual,1 Flexible Shaft.A great machine for drilling, polishing, burring, milling, slotting,..