21V Home Cordless Impact Wrenches 1/2 Impact Gun with Max Torque 420Ft-lb(600Nm)

  
The brushless motor of impact wrench can generate 600Nm(442 foot-pounds)of torque that users can control with its 3-speed power selector, which can remove, or break free, rusted nuts and bolts on some duty or farm equipment, replace car tires, assemble scaffolding, etc. Cordless, battery-powered impact wrenches have gotten better as battery technology improves, which a 21V 4.0Ah battery of cordless impact wrench can provide very good mobility, longer use and higher efficiency.