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-11 (1/8) – Ball Shape Carbide Burr Single Cut Item #: SC91054 SD-5L6 (1/2) – Ball Shape Carbide Burr 6″ Long Double Cut Item #: SC90609 SD-1 (1/4) – Ball Shape Carbide Burr Single Cut Item #: SC91056