3/4""D brake caliper wrench designed for loosening and tightening brake caliper screws. 22mm Hex. Applications: MAN and TGL HGVs. When using in combination with a torque wrench, always use the correction factor formula that is etched on the wrench. Use with 3/4""D torque wrench. Manufactured from carbon steel (S50C), with a black phosphate finish. Other sizes available: 21mm (Part No. 8538), 24mm (7341), 26mm (7342), 27mm (7343), 30mm (8538).