SN-53 (3/16) – Inverted Cone Shape Carbide Burr 1/8 Shank Single Cut List Number SC91441 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 Single SKU: SC91441 Category: SN series - Inverted Cone Related products SN-6 (5/8) – Inverted Cone Shape Carbide Burr Double Cut Item #: SC90121 SN-51 (1/4) – Inverted Cone Shape Carbide Burr 1/8 Hardened Shank Single Cut Item #: SC91408 SN-2 (3/8) – Inverted Cone Shape Carbide Burr Double Cut Item #: SC90119