Half Round Concave Shaper Cutters (Bullnose Cutter) – MC Line (3/4″ Bore) Product Name Opening Width Radius MC-64-002 1/4″ 1/8″ MC-64-003 3/8″ 3/16″ MC-64-004 1/2″ 1/4″ MC-64-006 3/4″ 3/8 MC-64-008 1″ 1/2″ MC-64-009 1-1/8″ 9/16″ MC-64-010 1-1/4″ 5/8″