SN-81 (3/16) – Inverted Cone Shape Carbide Burr 3/16 Shank Single Cut List Number SC91427 Overall Length 2" Substrate Carbide Surface Treatment Bright Package Quantity 1 Shank Diameter 3/16 Style SN-81 Length Of Cut 1/4 Diameter 3/16 Cut Style Single SKU: SC91427 Category: SN series - Inverted Cone Related products SN-1 (1/4) – Inverted Cone Shape Carbide Burr Double Cut Item #: SC90118 SN-53 (3/16) – Inverted Cone Shape Carbide Burr 1/8 Shank Single Cut Item #: SC91441 SN-51 (1/4) – Inverted Cone Shape Carbide Burr 1/8 Hardened Shank Single Cut Item #: SC91408