Quick Detachable Bushing Bushing Type Quick Detachable Bore Bushing Series QT Bore Diameter 19 mm Length 1.25 in Bolt Circle Diameter 2 in Bolt Size 1/4 In.-20 x 1 in System of Measurement Metric Bushing Diameter 1.625 in Flange Type Split Flange Width 1/4 in For Shaft Type Keyed Includes (2) Cap Screws Keyway Height 2.9 mm Keyway Width 6 mm Length Less Flange 1 in Material Steel Overall Diameter 2.5 in SAE Grade 5 Taper 3/4 in Per ft