Step Down Adapter, Bore Diameter 7/8 in, Bore Depth 1 7/8 in, Adapter Outside Diameter 1 7/8 in, Shaft Length 1 1/4 in, Shaft Diameter 5/8 in, Overall Length 3 5/8 in, Adapter Type Step Down, Screw Thread Size 1/4 In.-28, Adapter Material Steel,...