| Customized: | Non-Customized |
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| Standard: | DIN |
| Length: | Overlength |
| Type: | Twist Drill Bit |
| Material: | Tungsten Carbide |
| Usage: | Metal Drilling |
| Samples: |
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HRC55 Twist Straight Shank Cemented Carbide External Cooling Type Drill Bit CNC Drilling Tool
| Carbide Material Introduction | ||||||
| Drill Bit GRADE |
Material Grade | Grain | Introduction | Application | ||
| HRC45 carbide material | YL10.2 | 0.6μm | YL10.2 is tungsten carbide powder with 89.7% WC and 10% cobalt powder, and has high toughness and wear resistance. | Suitable for General Steel | ||
| HRC55 carbide material | K30 | 0.5μm | K30 is ultra fine grain and containes Ni and Cr element, which provides high strength and good toughness. | General Steel, cast Steel, cast iron |
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| HRC60 carbide material | WF25 | 0.4μm | WF25 is 0.4micron ultrafine carbide powder and provides very high toughness and wear resistance. | High Hard Material, steel, cast iron, etc | ||
| Coating Introduction | ||||||
| Drill Bit GRADE | Coating Name | Color | Hv | μm | Friction | The Max ºC |
| HRC45 coating | AlTiN | black | 3300 | 1-4 | 0.7 | 850ºC |
| HRC55 coating | TiSiAlN | bronzed | 3400 | 1-4 | 0.7 | 900ºC |
| HRC60 coating | AlCrSiN | black | 4000 | 1-7 | 0.35 | 1100ºC |
1) Please contact us if you meet any product quality problem;
2) Please contact us if you meet any custom clearance problem;
3) Please contact us if you get wrong products or miss something;
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