1,Rated Voltage:230/120V 2,Power Input:85W 3,No-load Speed:4800rpm 4,Disc Size:108X3.2X23 1,Rated Voltage:230/120V2,Power Input:220/85/85/85W3,No-load Speed:7500/5500/4800/4800rpm4,Disc Size:108X3.2X23 electric multi-purpose sharpener Chain Sharpener