25 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 Universal steel nut adapter works on virtually all crankshafts Eliminates the need for a shop press to install a crankshaft Machined brass thrust washer for extra durability Reversible pull stud. TOOL CRANK SHAFT PULLER