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Kennametal 8.6mm 135° Spiral Flute Solid Carbide Screw Machine Drill Bit TiCN
carbide provides better rigidity than high speed steel. It is extremely
heat resistant and used for high-speed applications on cast iron,
nonferrous materials, plastics and other tough-to-machine materials.
Multilayer Titanium carbonitride (TiCN) is harder and more wear
resistant than Titanium nitride (TiN). It is used on a variety of
materials including stainless steel, cast iron and aluminum alloy.
Spiral flutes are constructed of a higher flute angle to remove chips