
HSS TWIST DRILL BITS
1. Standard: 1.0-22.0 mm for DIN338, DIN1897, DIN340;
2. Steel material: HSS 4241,HSS 4341, HSS9341, M2(6542), M35, M42,
3. Process: Fully ground, milled, polished, roll forged
4. Surfce finishing: Bright finished, black oxide, Tin-coated, black & white, black & gold, coffee color.
Diameter (mm) | L1 (mm) | L2 (mm) | Diameter (mm) | L1 (mm) | L2 (mm) |
1 | 34 | 12 | 9.5 | 125 | 81 |
1.5 | 40 | 18 | 10 | 133 | 87 |
2 | 49 | 24 | 10.5 | 133 | 87 |
2.5 | 57 | 30 | 11 | 142 | 94 |
3 | 61 | 33 | 11.5 | 142 | 94 |
3.5 | 70 | 39 | 12 | 151 | 101 |
4 | 75 | 43 | 12.5 | 151 | 101 |
4.5 | 80 | 47 | 13 | 151 | 101 |
5 | 86 | 52 | 13.5 | 160 | 108 |
5.5 | 93 | 57 | 14 | 160 | 108 |
6 | 93 | 57 | 15 | 169 | 114 |
6.5 | 101 | 63 | 16 | 178 | 120 |
7 | 109 | 69 | 17 | 184 | 125 |
7.5 | 109 | 69 | 18 | 191 | 130 |
8 | 117 | 75 | 19 | 198 | 135 |
8.5 | 117 | 75 | 20 | 205 | 140 |
9 | 125 | 81 | 22 | 219 | 150 |

Jiangsu Yaofeng Tools Co.,Ltd is located in Danyang ,Jiangsu Province. Founded in 1992, we are professional manufacturer of diamond saw blade ,TCT saw blade and HSS drill bits.The company has passed ISO9001:2015 international quality system certification ,Germany MPA ,and European BSCI.


Saw Blades Sample Room
Drill Bits Sample Room
THE MOST TRUSTED SUPPLIER
HOT SELLING



Wave Turbo
Segment Rim
Contiuous Rim



Single PCS HSS
16 PCS Combination Drill
25 PCS Set in Metal box
Why Choose us?
1. Special Design for different customer demand.
2. OEM, Accept lower quantity trial order.
3. Fast cutting, Long life, High universality.
4. Our Quality has been approved by European & Mid-East & South American markets for 28+ years.
5. We can offer our clients good after-sale service and professional ↓↓↓ technical assistance.


Jiangsu Yaofeng Tools Co. Ltd. MPA Certification from TÜV EN13236, EN847-1 Code:
20810/8, 20811/8, 20812/8, 20813/8

Company | Jiangsu Yaofeng Tools Co.,Ltd |
Name | Rita Zhu ( Sales Manager) |
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