TiN Coated Drill Bit - 3 Pcs High speed steel (HSS) provides good wear resistance and can be used in general purpose applications for both ferrous and nonferrous materials. Titanium Nitride (TiN) is a multi-purpose coating which increases chip flow in softer materials. The heat and hardness resistance allows the tool to run at higher speeds than uncoated tools. Spiral flutes are constructed with a higher flute angle to remove chips more easily. Features include... 5/16" Mill Diameter 0.3125" Diameter 3 3/16" Flute Length 4.5" Overall Length Solid Carbide TiN Coated 118° Point Angle 3 Pcs
