Overview Product Description 8 mm Hex Drive, 1/2" Drive end, fits Torque Wrench, 2811002880 with drive head installed. Use for tightening 100 mm (4") AIRnet Equal Unions10 mm Hex Drive, 1/2" Drive end, fits Torque Wrench, 2811002880 with drive head installed. Use for tightening 158 mm (6") AIRnet Equal Unions Product Videos Custom Field Product Reviews