Overview Reviews Product Description Cobalt Center cutting Bright finish (TiN and TiCN coatings available) 3 flute end mills offer more chip clearance than 4 flute and better surface finish than 2 flute Clarkson Osborn Catalog Product Videos Custom Field Diameter 40mm Material Cobalt Package quantity/sold as each 1 Product Reviews Write a Review Write a Review × Clarkson-Osborn 40mm TiN Coated Cobalt 3 Flute Threaded Shank End Mill MC16840T Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *