The Bio-Brace ergonomic grip minimizes the harmful effects of torque reaction from power screwdrivers and nut runners. A padded yoke acts as a lever to reduce and refer the force generated by the tool away from the wrist and to the forearm, where it can be easily tolerated. A comfortable flange also enables axial force to be exerted on the workpiece with less gripping effort. The unit replaces dead handles; in many instances, freeing the operators other hand.