Power(W) 1/5HP 1/4HP 1/4HP 1/2HP 1/2HP 3/5HP Caliber dimension 5/8'-18UNF 7/16'-20UNF Oilconsumption(mL) 125 250 300 500 550 600 Dimension(cm) 27?7?0 30?5?0 34?5?0 36?2?5 38?2?5 39?2?5 Weight(kg) 3.8 5.7 6.3 11.8 13 14