SK-1 (1/4) – Cone Shape 90° Carbide Burr Single Cut • 90° Cone Shape List Number SC91099 Substrate Carbide Surface Treatment Bright Angle 90° Package Quantity 1 Shank Diameter 1/4 Style SK-1 Length Of Cut 1/8 Diameter 1/4 Cut Style Single SKU: SC91099 Category: SK series - Cone 90° Related products SK-5 (1/2) – Cone Shape 90° Carbide Burr Double Cut Item #: SC90101 SK-42 (1/8) – Cone Shape 90° Carbide Burr 1/8 Shank Double Cut Item #: SC90175 SK-7 (3/4) – Cone Shape 90° Carbide Burr Single Cut Item #: SC91103