Material: Carbon steel BMW engine models (for example): M4, M10, M20, M30, M40, M40, M50, M52, M52TU, M54, M60, M60, M70, M73, S14, S38, S54, S50B30, S50B32 Delivery includes 1 x clutch nut wrench fan and 1 water pump holder This water pump holder and fan clutch key removal tool kit for BMW is used to disassemble the water pump on models with temperature dependent viscosity drive fans. It is suitable for BMW engine models such as M4, M10, M20, M30, M40, M44, M50, M52, M52, M52TU, M54, M56, M56, M60, M70, M73, S14, S38, S54, S54, S50B30 and S50B32. This tool kit comes with a fan clutch nut wrench for removing lock nuts on thermo-viscous fans and a water pump bracket that allows the technician to hold the water pump pulley in place when loosening the radiator fan. Carbon steel gives these tools a great robustness and durability.