Info:110V/60Hz, 70W Max.Speed:4800RPM(No Load) Info:230V/50Hz,65W Max.Speed:6000RPM(No Load) Max.Wheel Diameter:3/8"(10mm) Drill Diameter:7/64'~3/8:(3mm~10mm) Sharpens Straight Edge Chisel and Plane Blades from 1/4"~2"Wid (6mm~51mm) Net Weight:3.63LBS(1 .65KGS) Q'ty/Carton:4pcs Carton Measurement: 45.5*42*19cm