Bordo TiN Coated Jobber Drill GREEN BAND CARBON STEEL
The machinability of different carbon steels is as varied as their properties. Soft-tough construction steels place a unique set of demands on the tools.
The Bordo Green Band Series of drills and taps have been developed specifically for this range of steels.

TiN coating increases tool surface hardness to 85Rc. For machining materials with Hardness < 250 HB : Tensile Strength <900 N/mm2.

DRILL BIT SURFACE TREATMENTGOLD FINISH TiN (Titanium Nitride) GOLD A very hard gold coloured surface finish a few microns thick is achieved by Physical Vapour Deposition (PVD). As with all surface coated tools, performance will deteriorate after resharpening. The coating helps to dissipate heat and reduces friction and cold welding. Higher speed and feed rates can be achieved and tool life is greatly increased.