Titanium Nitride Coated Ground Flute Hss Drill Set 19-piece 1-10mm In Case, New

US $34

  • Wimborne, United Kingdom
  • Nov 13th
Set of 19 titanium nitride coated HSS drills in hard-wearing compact storage case. Drills from 1-10mm rising by 0.5mm steps. Highest professional quality, fully ground flutes, from KWB- made to German standard DIN 338-G.  Ground flute drills are sharp all the way down the spiral, not just at the tip, and are perfectly concentric, so they work with less friction than normal roll-forged drill bits.  As a result they generate less heat, drill faster and last longer. Titanium nitride is an extremely hard and low-friction coating, so the sharp cutting edges stay sharp longer, and less heat is generated. Use thes especially where difficult materials such as stainless steel, cast iron, tool steel etc. have to be drilled.  They will also last around 5 times as long as conventional roll-forged HSS drill bits when used on more usual materials such as mild steel, wood and plastics. Another advantage of titanium nitride coated drill bits is that, because the coating generates so little heat through friction, the drilling speed is not all that critical (with cobalt drill bits, you have to get the speed absolutely right for the drill diameter/ material combination or the bit will burn out:- with titanium you have a much greater margin of error).  FREE SHIPPING UK!  Due to many postal losses can no longer post to Italy, Argentina or Brazil except by tracked service: please e-mail for price.    We always despatch items quickly, but if you need the item fast we strongly recommend that you take the 1st class post option, as 2nd class can be very slow these days (much slower than they claim).    Overseas buyers:-  Please ask for combined postage deal before paying Please note when giving seller ratings and feedback that a) by law we now have to charge VAT on postage and packing to UK and EU and b) from September 2013 E-bay are charging their fees on postage and packing as well as the item cost!  

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