TiN Coated Drill Bit - 2 Pcs The HSS Tool Material provides good wear resistance in mild steels, soft metals (aluminum, copper,brass, bronze) and non-ferrous materials.The TiN Oxide Coating increases lubricity and heat resistance. Allows increase in machine speeds of 25 - 35%. Features include... 7/16" Mill Diameter 0.4375" Diameter 4 1/16" Flute Length 5 1/2" Overall Length Solid Carbide TiN Coated 118° Point Angle 2 Pcs
