SwissTech 33, Regular, Slot Drill, 20mm, 3fl, Threaded Shank, Cobalt High Speed Steel, Uncoated

Series 33 - Regular Series Dimensions to DIN 844. Centre cutting. Threaded shank to DIN 1835B. Cutting diameter to e8. Shank diameter to h6. Uncoated (for general production machining) TiCN Coated (extends cutter life and improves work material surface finish) and TiALN Coated (dissipates and resists heat, reduces surface friction coupled with high surface hardness).