IDC Select® bushings are available in H, QD®, Taper-Lock®, and Split Taper™ designs and are available in inch and metric sizes. They are stocked in popular finished bore sizes. All IDC Select® bushings are fully interchangeable with industry standard design. IDC Select® Taper-Lock® Bushing, Finished Bore, 2-1/8 in Bore Dia, 3-3/8 in Barrel Dia, 8 deg Taper, 3-1/4 in Bolt Circle, 1/2-13 UNC Screw, 422 in-lb, 1-3/4 in Overall Length, 1/2 x 1/4 in Keyway, Nodular Graphite Cast Iron