Designed for square-drive impact wrenches Need to use hex screwdriver bits with your impact wrench? Choose the PRO Impact Bit Adapter. It helps you adapt your impact wrench to use 1/4? hex screwdriver bits. The PRO Impact Bit Adapter accepts the 1/2? square drive and 1/4? hex screwdriver bits, allowing you to use your impact wrench for a variety of light-duty screwdriving tasks below 80 Nm torque. The adapter is a robust accessory equipped with a magnet for holding the bits securely. Features and Benefits: • Designed for square-drive impact wrenchesFALSE • Only suitable for applications below 80 Nm – for heavier applications use impact bits with an impact driver • Highly efficient for installers, electricians, metalworkers, and woodworkers: Robust Specifications: External square drive end, inch: 1/2 Internal hex drive end, inch: 1/4 Length mm: 35 Shank: 1/2" internal square