Product features:
Straight shank HSS twist drill bits

Standard: DIN1897

Production technics:
1. Roll forged;
2. Roll & polished
3. Milled;
4. Fully ground

Surface finishing:
1. Bright
2. Black & gold
3. Black & Bright
4. Coffee color
5. Rainbow color
6. Tin coating
7. Black finishing
8. Zirconium coating

Using Material:
1. HSS M2 ( 6542) / W9 ( 9341 ) / W4 ( 4341 ) / 4241 for roll forged
2. HSS M42 / M35 / M2 ( 6542 ) / W9 ( 9341 ) for milled
3. HSS M42 / M35 / M2 ( 6542 ) / W9 ( 9341 ) for fully ground

Cutting edge:
1) 118° Or 135° Split point
2) 118° General angle
3) 135° General angle

Metric Size ( mm ) as below:
1.0, 1.1, 1.2, 1.3, ...~ 2.0, 2.1, 2.2, ...~, 3, 3.1, 3.2, ...~...18, 18.25, 18.5, 18.75, 19, 19.25, 19.5, 19.75, 20.0mm

Note: Split point drills available from 3mm and above sizes.