Specification: electric brake     blade head protection     rotary handle input power:550W cutting capacity:16/20mm no load speed:1600rpm blade length:510/550/610mm Package(4pcs): Size 97X33.5X26CM 102X36X27CM 107X36X27CM G.W/N.W 14/12KGS 15/13KGS 16/14KGS Loading QTY 1344/2528/2972 1240/2304/2888 1120/2232/2736 Other models are all available,pls feel free to visit our website to know more about other models. Approval:CE&GS&ROHS&CB&UL