SD-51 (1/4) – Ball Shape Carbide Burr 1/8 Hardened Shank Single Cut List Number SC91403 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 Single SKU: SC91403 Category: SD series - Ball Related products SD-5 (1/2) – Ball Shape Carbide Burr Double Cut Item #: SC90060 SD-9 (1″) – Ball Shape Carbide Burr Double Cut Item #: SC90063 SD-3 (3/8) – Ball Shape Carbide Burr Double Cut Item #: SC90058