Quick Detachable Bushing, Bushing Type Quick Detachable, Bore Bushing Series SF, Bore Diameter 2 3/8 in, Length 2 in, Bolt Circle Diameter 3.-16 x 2 in, System of Measurement Standard, Includes Cap Screws, Material Iron, Steel, SAE Grade 5, Taper 3/4 in per ft on Diameter.