poweredwrenchpresentation.WMV

Whatever you power it by ,you multiply the torque,when you flip the wrench over it is automatically going in the opposite direction .

Also just the head of the wrenches can be able to swivel to make a bend at any length

Can be made in every size or length. 60 :1 torque can shift to 30 :1 torque ratio. U.S. Patent # 7934440