Series 39 – Short Series | Dimensions to DIN 327. Centre cutting. Threaded shank to DIN 1835D. Cutting diameter to e8. Shank diameter to h6. | | 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).