High precision copper core motor has high power, high temperature resistance and long service life Collector containing silver, cold rolled silicon steel sheet, high temperature enamel wire Break the wall quickly in 30 seconds, the precision cylinder is strong enough The stainless steel chuck will not fall off the drill, and the high strength chuck bit will not fall. Both functions of electric hammer / electric selector and one-touch quick adjustment are suitable for different scenes Auxiliary handle rotatable 360 degrees, convenient to use at different angles Durable high-strength switch, tens thousands of durability tests can be repeated, and the continuous life of the switch is long Separate protective cover, top and bottom ventilation design, efficient heat dissipation. Protect the motor to prevent tea from entering Leak proof oil plug, more convenient for refueling, using high quality grease to effectively enhance the explosive power High quality power cord, full copper wire, thickened school, easy to cope with heavy load work External carbon brush design, check the use at any time, replace the egg, just save time and effort About installing the drill bit, press the red plastic part and lift the black iron sleeve, insert the drill bit and install it in place, and the square part of the drill bit can not be seen Replace the carbon brush, open the cover with a screwdriver to replace the carbon brush Add butter regularly and unscrew the cover with pliers to regularly check the amount of butter remaining Power: 1900W Voltage: 220V Frequency: 50 HZ Speed: 0-800r / min Number of hammer blows: 3300min Four-hole type electric hammer Impact rate at rated speed 900 (bpm) Power supply type AC power supply Maximum drill diameter 26 (mm ) No-load speed 800 (rpm) Dimensions 30 (mm) Weight (without cable) 5 (KG) Field of application: chiselling, impact, punching Accessories carbon brush, gloves, dust cover Single phase AC and DC 50V voltage range above 250V and below Specifications dual-purpose electric hammer Chuck-type automatic chuck Size chuck 26 mm