SN-42 (1/8) – Inverted Cone Shape Carbide Burr 1/8 Shank Double Cut List Number SC90182 Substrate Carbide Surface Treatment Bright Package Quantity 1 Shank Diameter 1/8 Style SN-42 Length Of Cut 3/16 Diameter 1/8 Cut Style Double SKU: SC90182 Category: SN series - Inverted Cone Related products SN-41 (3/32) – Inverted Cone Shape Carbide Burr 1/8 Shank Single Cut Item #: SC91181 SN-4 (1/2) – Inverted Cone Shape Carbide Burr Single Cut Item #: SC91120 SN-51 (1/4) – Inverted Cone Shape Carbide Burr 1/8 Hardened Shank Single Cut Item #: SC91408