Tool Crank Shaft Puller 08-0631Crankshaft Puller25 mm and 40 mm face plate adapters ensure the crankshaft is pulled perfectly straight into bearings Precision tool used to install press in crankshafts in an engine case Time saving method maintains crankshaft true during installation Reversible pull stud with both M10x1. 25 and M12x1. 25 threads Universal steel nut adapter works on virtually all crankshafts Eliminates the need for a shop press to install a crankshaft Machined brass