This versatile set removes steering wheels, harmonic balancers, crankshaft pulleys and gear pulleys, plus other parts with tapped holes. Also services lawn mowers and outboard motors. Includes 20 SAE and 10 metric bolts (in assorted lengths and thread sizes), 11 assorted washers, small and large centering adapters, large expansion plug, 2- or 3-way puller yoke and 3/4"-16 main pressure screw (approx. 5"L). Yoke is made of drop-forged, heat-treated alloy steel. All bolts are made of heat-treated alloy steel.