Feature:1. Suitable for 21V for Makita battery. The brushless motor will not produce sparks when working, and the motor will not wear out2. This electrical screwdriver machine possess up to 520N.M high torsion, no pace change switch3. The powerful electric wrench are multipurpose and super power, helps a lot in daily life4. Shaft is made of tungsten steel, which possess high hardness and strong wear resistance5. Brushless impact wrench is suitable for construction site shelves, maintenance, woodworking, etc.Specification:Item Type: Screwdriver MachineMaterial: Rubber + tungsten steelPower Supply Type: Rechargeable-lithium battery technology 21VNo Load Speed: 0-2700 rpmImpact Frequency: 0-2700 ipmMaximum Torsion: 520N.MSquare Drive: 1/2inNumber of Revolutions(rpm): 0-2,500.Package List:1 x Screwdriver Machine1 x User Manual