Product Lines > Cutting Tools > K-Tool > Drill Chamfer Drill Chamfer Item Number Description DCR-100-112 45 DEG. DRILL CHAMFER RING DCR-112-125 45 DEG. DRILL CHAMFER RING DCR-125-138 45 DEG. DRILL CHAMFER RING DCR-138-150 45 DEG. DRILL CHAMFER RING DCR-30-40 45 DEG. DRILL CHAMFER RING DCR-40-50 45 DEG. DRILL CHAMFER RING DCR-50-62 45 DEG. DRILL CHAMFER RING DCR-62-75 45 DEG. DRILL CHAMFER RING DCR-75-87 45 DEG. DRILL CHAMFER RING DCR-87-100 45 DEG. DRILL CHAMFER RING