M1D-ZK2-D3(6) 　 Rated Voltage 　230/120V 　Frequency 　50/60Hz 　Rated Input Power 　500W 　Wheel Size 　1/4"+1/8"35/8mm 　No Load Speed 30000r/min 10000-28000r/min 　Case Qty 　4pcs 　G.W/N.W 　13.5/12.4Kgs 　Packing Size 　49.8x36.6x29.3cm 　PCS/Container(20) 　2200pcs We are Zhejiang Jinyi Electric Tools Co.,Ltd. in china.We supply electric tools,water pump,grinding wheel and air tools with good quality and low price. Please contact us to know details.