SN-53 (3/16) – Inverted Cone Shape Carbide Burr 1/8 Shank Double Cut List Number SC90441 Substrate Carbide Surface Treatment Bright Package Quantity 1 Shank Diameter 1/8 Style SN-53 Length Of Cut 1/4 Diameter 3/16 Cut Style Double SKU: SC90441 Category: SN series - Inverted Cone Related products SN-51 (1/4) – Inverted Cone Shape Carbide Burr 1/8 Hardened Shank Double Cut Item #: SC90408 SN-4 (1/2) – Inverted Cone Shape Carbide Burr Single Cut Item #: SC91120 SN-1 (1/4) – Inverted Cone Shape Carbide Burr Single Cut Item #: SC91118