Series 09 – Regular Series, TiCN Coated | Dimensions to DIN 844. Centre cutting. Weldon shank to DIN 1835B. | Shank cutting diameter: | 3-6mm to +0.04 -0.0. | 8-20mm to +0.05 -0.0. | | Available in HSS-Co 8% Uncoated (for general production machining), HSS-Co 8% TiCN Coated (extends cutter life and improves work material surface finish) and HSS-Co 8% TiALN Coated (dissipates and resists heat, reduces surface friction coupled with high surface hardness).