? For easy removal harmonic balancers and driver pulleys which are press-fitted onto the crank-shaft.
? Adapter sizes included :M16x2.0,M14x1.5, M12x1.5, 1/2"-20,7/16"-20，3/4"-16,5/8"-18，and 9/16"-18.
? A heavy-duty , 3/4"dia . forcing screw is internally threaded to fit the eight adapters to install harmonic balancers.
? A bearing-centered circular 2/3 -way flange and an assortment of metric and fractional bolts and adapters provide wide coverage.