Changzhou Xinpeng Tools Manufacturing Co.,Ltd
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High Speed Tungsten Carbide Drill Bits / 6mm 7mm 8mm Carbide Drill Bit
Specifications:
DB-3D/5D Tungsten steel drill bit is made of imported fine particle tungsten steel material with bending strength of 4300mpa, grain size of 0.6 μm. The cutter adopts special angle design, strict quality control, self inspection rate of 100%, qualification rate of more than 98%, suitable for hole processing of various grades of steel, non-ferrous metals and other materials.
| Raw Material | GU20UF/TF200 |
| WC | 89% |
| Co | 11% |
| TRS | >4300N/mm2 |
| Hardness | >91.5HRA |
| A.O.L | 66mm-153mm |
| Grain size | 0.6 μm |
| Upto | HRC55-60 |
| Suitable for | various grades of steel, non-ferrous metals and other materials |
Standard Sizes
| Flute Length=3*D | |
| Cutting Diameter | Shank Diameter* Overall Length |
| D3-D6 | D6*66L |
| D6.1-D8 | D8*79L |
| D8.1-D10 | D10*89L |
| D10.1-D12 | D12*102L |
| D12.1-D14 | D14*107L |
| D14.1-D16 | D16*115L |
| D16.5-D18 | D18*123L |
| D18.5-D20 | D20*131L |
| Flute Length=5*D | |
| Cutting Diameter | Shank Diameter* Overall Length |
| D3-D3.7 | D6*66L |
| D4-D4.65 | D6*74L |
| D4.8-D6 | D6*82L |
| D6.1-D8 | D8*91L |
| D8.1-D10 | D10*103L |
| D10.1-D12 | D12*118L |
| D12.1-D14 | D14*124L |
| D14.1-D16 | D16*133L |
| D16.5-D18 | D18*143L |
| D18.5-D20 | D20*153L |
