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-6 (5/8) – Ball Shape Carbide Burr Double Cut Item #: SC90061 SD-4 (7/16) – Ball Shape Carbide Burr Single Cut Item #: SC91059 SD-11 (1/8) – Ball Shape Carbide Burr Double Cut Item #: SC90054