Active Member
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[China]
Address: 1012-1 Mall, Huaren street, Tianyuan District, Zhuzhou City, Hunan province, China Zip code: 412000
Contact name:Emily
Zhuzhou Grewin Tungsten Carbide Tools Co., Ltd |
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Tungsten Carbide drill bit
1.Dimension : 3.3x58, 3.5x58, 6.0x82, 8.0x91, 16.0x133 and
customized sizes
2.Measurements manufactured according to standard DIN6537
Chisel edge grinding IRK standard
Primary edge point angle 140°
Shank according to DIN6535HA h6
3.Coating : Optinal
4. Tolerance of cutting edge diameter m7
5.Chip Evacuation Groove special designed, easy evacuation
6.Use for Gary Iron, Ductile Cast Iron, Stainless steel, Structural
Steel, Alloy Steel and other common materials; Precise centering
ability which enables to gain stable dimensional accuracy and fine
surface quality; Suitable for process system with excellent
rigidity
| Diameter | Cutting length | Over length |
| 0.5 | 3 | 50 |
| 1.0 | 6 | 50 |
| 1.5 | 9 | 50 |
| 2.0 | 12 | 50 |
| 2.5 | 14 | 50 |
| 3.0 | 16 | 50 |
| 3.5 | 20 | 55 |
| 4.0 | 22 | 55 |
| 4.5 | 24 | 75 |
| 5.0 | 26 | 75 |
| 5.5 | 28 | 75 |
| 6.0 | 28 | 75 |
| 6.5 | 31 | 80 |
| 7.0 | 34 | 80 |
| 7.5 | 34 | 80 |
| 8.0 | 37 | 80 |
| 8.5 | 37 | 90 |
| 9.0 | 40 | 90 |
| 9.5 | 40 | 90 |
| 10.0 | 43 | 90 |
| 11.0 | 47 | 100 |
| 12.0 | 51 | 100 |
| 13.0 | 51 | 100 |
| 14.0 | 51 | 100 |
| 16.0 | 51 | 100 |
| 18.0 | 51 | 100 |
| 20.0 | 51 | 100 |
