Dodge QD Bushing, 42 mm Bore Dia, 55.4 mm Barrel Dia, 120.7 mm Hub Dia, 68.3 mm Bolt Circle, 80.8 mm Flange Dia, 10.9 mm Flange Thickness, 3 Bolt Holes, M6-1 x 35 mm Screw, 565 N-m, For Use With: HTD Sprockets, 33.3 mm Overall Length, 12 x 3.3 mm Keyway, Ductile Iron Size SDS bushingFlanged design4 deg angled taperEasy On/Off operationManufactured precisely to industry standards