This IRWIN 29-Piece Titanium-Nitride-Coated Drill Bit Set includes drill bits with titanium-nitride coating that reduces friction and withstands heat, lengthening the life of the cutting edge and keeping it sharp. These drill bits are designed for repetitive metal drilling with portable drills and stationary drill presses.
15 piece Zirconium Nitride Coated Drill Bit Set Zirconium Nitride Finish Lasts 10 Times Longer Than Normal Bits 135 Degree Split Point Bits Start On Contact & Provide Precision Drilling
Zirconium-coated bits, such as the Craftsman bit sets, are coated with Zirconium nitride for extra strength and feature a split-point and groove design that breaks up chips for faster penetration and more precise drilling. The point design eliminates walking. THIS ITEM IS BRAND NEW -- NOT A RETURN, REFURBISHED, OR DAMAGED IN ANY WAY!
The TiN coated drill bits you get from Harbor Freight are nothing like a quality coated drill. The main advantage I observed from TiN coated high speed steel tools back in my days of production machining was improved evacuation of the metal chips. The edge of the TiN coated drill broke down just as fast as that of an identical but uncoated ...
Find Jobber Length Drill Bits at MSC Industrial Supply, serving the metalworking, safety, and MRO industries for over 75 years
Zirconium nitride is used as a hard coating for machine tools like drill bits and burs. These coatings are deposited by physical vapour deposition. Zirconium nitride coated tools are suited to non-ferrous metal applications like the machining of aluminium alloys, brasses, copper alloys and titanium. Source: AZoM.com
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