829105 is a special crankshaftpulley holding tool for the N47/N57BMW diesel engines found across theBMW and Mini ranges. Designed to hold the crankshaftpulley stationary while loosening ortightening the centre bolts of thepulley. Equivalent to OEM 11 7 220 Please carry out an up-to-date cross reference test for thespecific vehicle on our Website For the professional engine repair For locking the crankshaft or camshaft and injectionpump Very high degree of accuracy In foam inlay in a durable BMCS (Blow mould case storage)