Precision tool used to install press-in crank shafts into an engine caseTime saving method maintains crank shaft true during installationUniversal steel nut adapter works on virtually all crankshafts22mm and 40mm billet aluminum face plate adaptors ensure crankshaft is pulled perfectly straight into bearingsReversible pull stud with both M10x1.25 and M12x1.25 threads Eliminates the need for a shop press to install crankshaftMachined brass thrust washer for extra durability