General description This 3/4""D brake caliper wrench is specifically designed for releasing and refitting brake caliper mounting bolts on commercial vehicles. It features two impact striking faces to effectively loosen bolts that are tightened to very high torque figures. Technical specifications Size: 30mm single hex (6pt) Material: S45C steel Hardness: HRC 38-42 Finish: Black phosphate Compatibility and accessories Use with 3/4""D torque wrench Other sizes available: 21mm (Part No. 8538), 22mm (7340), 24mm (7341), 26mm (7342), and 27mm (7343) Usage Designed for loosening and tightening brake caliper screws When using in combination with a torque wrench, apply the correction factor formula etched on the wrench