SD-1 (1/4) – Ball Shape Carbide Burr Double Cut • Ball Shape List Number SC90056 Substrate Carbide Surface Treatment Bright Package Quantity 1 Shank Diameter 1/4 Style SD-1 Length Of Cut 3/16 Diameter 1/4 Cut Style Double SKU: SC90056 Category: SD series - Ball Related products SD-14 (3/16) – Ball Shape Carbide Burr Single Cut Item #: SC91055 SD-5 (1/2) – Ball Shape Carbide Burr Single Cut Item #: SC91060 SD-7 (3/4) – Ball Shape Carbide Burr Single Cut Item #: SC91062