SD-51 (1/4) – Ball Shape Carbide Burr 1/8 Hardened Shank Double Cut List Number SC90403 Substrate Carbide Surface Treatment Bright Package Quantity 1 Shank Diameter 1/8 Style SD-51 Shank Type Hardened Length Of Cut 1/4 Diameter 1/4 Cut Style Double SKU: SC90403 Category: SD series - Ball Related products SD-7 (3/4) – Ball Shape Carbide Burr Double Cut Item #: SC90062 SD-5 (1/2) – Ball Shape Carbide Burr Single Cut Item #: SC91060 SD-11 (1/8) – Ball Shape Carbide Burr Single Cut Item #: SC91054