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| Customization: | Available |
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| Length: | 38-330mm |
| Type: | Twist Drill Bit |
| Shipping Cost: | Contact the supplier about freight and estimated delivery time. |
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| Support payments in USD |
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| Refund policy: | Claim a refund if your order doesn't ship, is missing, or arrives with product issues. |
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Products Function:
1.HRC: HRC45 HRC55 HRC58 HRC60 HRC65
2.Coated: AlTiN, TiAlN, TiAISI,TiSiN, TiN, DLC,Nano, Diamond
3.Could be used for the processing of copper, cast iron, carbon steel, mould steel, stainless steel, titanium alloy, tool steel, and heat-treated steel
Products Features:
1. Special Designed Drill Tip: Special designed drill tip will increase the Centering Ability and Chip breaker ability. Thus,the processing efficiency will be increased.
2. Much Sharper Cutting Edge: The much sharper cutting edge can decrease the cutting resistance and and torque. The lifetime of tools and machines will be longer.
3. Heat-resistant Coating: With highly heat-resistant HELICA/ALTIN coating, can be used for high-speed processing.
4. Smooth and Wide Flute:Smooth and wide flute will remove the cuttings more easily.
5. High Quality Raw Material: The raw material is used of high toughness, grain-sized carbon tungsten.
6. Polished Surface Treatment: With high polished surface treatment, reduce the friction coefficient could be reduced, the lathe efficiency could be improved, more production time could be saved.
Products Detail:
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| Step Drill Bits | ||||
| D1 | D2 | L1 | L2 | L3 |
| 3.40 | 6.0 | 66 | 28 | 11.4 |
| 4.30 | 6.0 | 66 | 28 | 13.6 |
| 5.00 | 6.6 | 79 | 41 | 16.5 |
| 6.90 | 10.0 | 89 | 47 | 21.0 |
| 8.70 | 12.0 | 102 | 55 | 25.5 |
| 10.40 | 14.0 | 107 | 60 | 30.0 |
| 12.25 | 16.0 | 115 | 65 | 34.5 |
| 14.25 | 18.0 | 123 | 73 | 38.5 |
| Customized Tools are Acceptable | ||||

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