SD-81 (3/16) – Ball Shape Carbide Burr 3/16 Shank Single Cut List Number SC91422 Overall Length 2" Substrate Carbide Surface Treatment Bright Package Quantity 1 Shank Diameter 3/16 Style SD-81 Length Of Cut 3/16 Diameter 3/16 Cut Style Single SKU: SC91422 Category: SD series - Ball Related products SD-3 (3/8) – Ball Shape Carbide Burr Single Cut Item #: SC91058 SD-5L6 (1/2) – Ball Shape Carbide Burr 6″ Long Double Cut Item #: SC90609 SD-6 (5/8) – Ball Shape Carbide Burr Single Cut Item #: SC91061