Machine & hand tapsHigh speed steel-ground threadCarbon steel-cut threadFine thread & coarse threadNominal size thread pitch overall length length of flutesD p l iM4*0. 5 0. 5 53 13M5*0. 5 0. 5 58 16M

The body of this drill bits is cold rolled.Tip sharpened to provide maximum cutting power.A simple, carefully made bit, excellent value of money.For use with rotary or roto-percussion drills.For drill

We can product good quantity abrasive wheel, in China. And our speciality is abrasive wheel.But our price is high. I donnot know if you can accept this price.I am not gold seller in alibaba.

HSS Amber Cobalt Straight Shank Drill Bit DIN 338Industrial grade cobalt steel.135 split point for quick start and no walk application.Cobalt for much higher hot hardness and abrasion resistance.Ideal

Masonry Drill Bit -- Milled and SandblastedMade of high carbon steel with industrial grade carbide tip.Milled slow spiral for quick, easy debris removal.Sandblasted finish.For use with rotary or roto-

Auto-soldering multi-purpose drill bitsProfessinal grade: auto-solderingFit for almost all materials up to 65 HRC hardnessThe unique carbide tip is extremely wear resistantIndustrial finishFit for mas

We can supply all kind of hss drill bits with competitive price and good service.

Diameter (mm) Length (mm)6 40 08 406 1508 15010 15012 150

Carbide tipped cutters accelerates drilling speed and reduces wearIntegral shank provides better power transmissionFit for masonry. Concrete. Brick. Marble and other similar materials