HMT VersaDrive MAX Heavy Duty Impact Wrench Adapter 1/2" DriveConvert high torque, 1 2" Impact wrenches for use with the VersaDrive MAX system. VersaDrive MAX adapters have been designed to accommodate the larger 20mm VersaDrive MAX shank & can withstand the highest levels of torque. Adapters are available to fit VersaDrive MAX tooling to both Impact Wrenches & high power Magnet Drills. Use with the highest torque drive tools Impact adapters are made to a trusted heavy duty design with pull forward locking