drill bit: 1.material :high speed steel 2.roll forged 3.High hardness 4.competitive price with good service

Hss 1/2" reduced shank twist drill bits:

1.Materials:high speed steel 

  

2.Surface treatment: Black Nitride,silver

3. point angle:118°or 135°

4.For drilling in steel,cast steel,malleable iron,sintered metal,non-ferrous metal ect.

5.Packing: Pvc+ paper box

6.Quality:High hardness

  

7.Certificate:ISO9001:2008

  

 Quality Control:In the quality control process,we pay attention to in every details to products checks,pursuit perfect products quality and service.

We are professional manufacturer of HSS twist drill bits .Along with our company growth,we hope to build bussiness with more companies abroad.If any of our products interest you,pls don't hesitate to contact us.

HSS 1/2" reduced shank drill bit