Step Down Adapter, Bore Diameter 1 3/8 in, Bore Depth 2 1/4 in, Adapter Outside Diameter 2 3/8 in, Shaft Length 2 in, Shaft Diameter 1 1/8 in, Overall Length 5 in, Adapter Type Step Down, Screw Thread Size 1/4 In.-28, Adapter Material Steel, Adapter...