Emuge CU5032105017 7/8-9 3B Enorm-VA Spiral Flute Bottoming Tap 4 Flute

The Blue Ring Mark Is A Visual Indication Of The Cutting Edge Geometry. Rake And Relief Angles Are Designed For Machining Difficult Materials Such As Stainless Steels And Acid-Resistant Steels, Heat-Treated Parts, Alloyed Steel Castings, Tool Steels And Similar Materials. Nitride/Oxide Is Harder Than Oxide And Used To Prevent Galling, Welding And Loading.