Specifications
1. High quality material- high speed steel2. Extreme durability and long life
3. High efficiency in drilling metals
170pc Roll Forged Black Finish HSS Drill Bit Set
1.Material:HSS4341,6542,M35,M42
2.Point Angle: 118 degree or 135 degree Split Point
3.Shank Type: Cylinder
4.Surface finshing:black, white,black&white,Amber,Tin coated
5.Processing: Fully ground
6. Standard: DIN338 standard
- 10 pieces for each of the following sizes:
- 1.0mm
- 2.0mm
- 3.0mm
- 4.0mm
- 5.0mm
- 6.0mm
- 7.0mm
- 8.0mm
- 1.5mm
- 2.5mm
- 3.5mm
- 4.5mm
- 5.5mm
- 6.5mm
- 7.5mm
- 5 for each of the following sizes:
- 9.0mm
- 10.0mm
- 8.5mm
- 9.5mm


The products are produced according to DIN / ANSI standards, we are also capable for OEM and ODM production.
TONGYU's philosophy is based on three principles: safety, efficiency and precision.
Pls. contact us freely for more information, I will reply you ASAP!
Hope you will enjoy a comfortable cooperation with us!
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