SD-4 (7/16) – Ball Shape Carbide Burr Single Cut • Ball Shape List Number SC91059 Substrate Carbide Surface Treatment Bright Package Quantity 1 Shank Diameter 1/4 Style SD-4 Length Of Cut 3/8 Diameter 7/16 Cut Style Single SKU: SC91059 Category: SD series - Ball Related products SD-1L6 (1/4) – Ball Shape Carbide Burr 6″ Long Double Cut Item #: SC90607 SD-4 (7/16) – Ball Shape Carbide Burr Double Cut Item #: SC90059 SD-3L6 (3/8) – Ball Shape Carbide Burr 6″ Long Double Cut Item #: SC90608