| Length: | 38-330mm |
|---|---|
| Type: | Twist Drill Bit |
| Material: | Tungsten Carbide |
| Usage: | Wood Drilling, Well Drilling, PCB Drilling, Metal Drilling, Masonry Drilling |
| Flute Diameter: | 0.3-40mm |
| Precision: | 0.005~-0.01mm |
| Samples: |
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| Customization: |
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Suppliers with verified business licenses
Audited Supplier 
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:
1. Super Raw Material
| Super Raw Material | |||
| HRC 45 | HRC 55 | HRC 60 | HRC 65 |
| YG10X | YL10.2&WF25 | Germany K44&K40 | Sandvik H10F |
| Grain size 0.7 μm, Co10%, Flexural strength 3320N/mm² | Grain size 0.6 μm, Co10%, Flexural strength 4000N/mm² | Grain size 0.5 μm, Co12%, Flexural strength 4300N/mm² | Grain size 0.5 μm, Co10%, Flexural strength 4300N/mm² |
| Super Coating | |||||
| Coating | Hardness HV |
Thickness μm |
Friction Coefficient |
Oxidation Temp |
Color |
| AlTiN | 3500 | 2.5-3 | 0.3 | 900 | Black |
| TiAlN | 2800 | 2.5-3 | 0.3 | 900 | Violet |
| TiSiN | 3600 | 3 | 0.45 | 1000 | Bronze |
| AlTiSiN | 4000 | 3 | 0.4 | 1200 | Blue |
| TiN | 2500 | 2-3 | 0.5 | 600 | Gold |
3. Specification
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| Solid Carbide Outer Coolant Drill Bit-8D | ||||||
| d1 | d2 | L1 | L2 | L3 | L4 | Coolant solution |
| 4.00-4.00 | 4 | 75 | 45 | 42 | 28 | Outer Coolant |
| 4.50-5.00 | 6 | 90 | 54 | 50 | 36 | Outer Coolant |
| 5.50-6.00 | 6 | 97 | 60 | 57 | 36 | Outer Coolant |
| 6.50-6.50 | 8 | 106 | 69 | 66 | 36 | Outer Coolant |
| 7.00-8.00 | 8 | 116 | 79 | 76 | 36 | Outer Coolant |
| 8.50-9.00 | 10 | 131 | 90 | 87 | 40 | Outer Coolant |
| 9.50-10.00 | 10 | 139 | 98 | 95 | 40 | Outer Coolant |
| 10.50-11.00 | 12 | 155 | 109 | 106 | 45 | Outer Coolant |
| 11.50-12.00 | 12 | 163 | 117 | 114 | 45 | Outer Coolant |
| 12.50-14.00 | 14 | 182 | 136 | 133 | 45 | Outer Coolant |
| 14.50-16.00 | 16 | 204 | 155 | 152 | 48 | Outer Coolant |
| 16.50-18.00 | 18 | 223 | 174 | 171 | 48 | Outer Coolant |
| 18.50-20.00 | 20 | 244 | 193 | 190 | 50 | Outer Coolant |
| 20.00-25.00 | 25 | 56 | Outer Coolant | |||
| Customized Tools are Acceptable | ||||||
Our Company:
Suppliers with verified business licenses
Audited Supplier 
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