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HSS Step Twist Drill Bits for Metal Drilling
    • HSS Step Twist Drill Bits for Metal Drilling
    • HSS Step Twist Drill Bits for Metal Drilling
    • HSS Step Twist Drill Bits for Metal Drilling
    • HSS Step Twist Drill Bits for Metal Drilling
    • HSS Step Twist Drill Bits for Metal Drilling
    • HSS Step Twist Drill Bits for Metal Drilling
    • HSS Step Twist Drill Bits for Metal Drilling
Product Details
HSS STEP DRILLS WITH 3 CUTTING EDGES
1, PROCESS:MILLED ROLLED,FULLY-GROUND
2,MATERIALS:HSS OR HSS-COBALT
3,APPLICATION MATERIAL:STEEL,CASTIRON OR OTHER SOFT METAL
4,SURFACE TREATMENT:WHITE,BLACK,TIN-COATED
5,SIZE:0.2-30.0mm

stub drill:DIN1897
normal drill:DIN338
long drill:DIN340,longer drill:DIN1869







  • Our company

  • 1) We're a direct manufacturer and 100% export to worldwide(USA, Isrel, Jordan, Iran, Thailand,Duabai, South Africa, Kenya, Egypt, Australia, UK, Spain, Brazil, etc)
    2) We have around 10 years producing experience.
    3) Our drill product:HSS drill bits, masonry drill, SDS drill,glass&tile drill, step drill, wood flat drill, wood auger bit, wood brad drill, center drill, left hand drill, drill set etc.
    4) Above 95% customers will place a formal order after testing the samples.

  • FAQ

  • Question : Can I ask some samples to test the quality?

  • Answer . Yes, We can send you some sample for testing quality

  • Question : How many days you need to prepare the samples?Question : How many days you need to prepare the samples?

  • Answer . We need 3-5 working days to prepare the samples

  • Question : Where is the loading port.

  • Answer . The loading port is shang hai and so on .

  • Our Services

  • 1.Excellent quality control is one of our main principles.

  • 2.All kinds of products and a full range of pneumatic products are available for your choice.

  • 3.A sample order and a small batch order will be available.

  • 4.We provide OEM services, accept customers' labels, and develop products with drawings or samples.

  • If there is any problem, we can contact.

  • Contact Us

  • Thank you for your interest in our products, if you have any questions, please feel free to contact us.


  • Tel: +86 13815045320


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  • Phone: 0086-519-83150991
  • Email: alex@bomitools.com
  • Address: Room706,Building3,Media Building,Xinbei District,changzhou City,Jiangsu Province,China

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CopyRight © 2019-2020 Changzhou Bomi Tools Co., Ltd all rights reserved. 
Sitemap   All tags  Designed by zhonghuan Internet     
CopyRight © -2020 Changzhou Bomi Tools Co., Ltd all rights reserved. 
   Sitemap   All tags  Designed by zhonghuan Internet