Tungsten Carbide Drill Bit Flat Bottom Drill With Naco Black Coating Inconel 718
Introduction:
AMG's premium Naco Black-coated tungsten carbide flat bottom drill delivers unmatched precision in critical machining applications. The advanced coating technology combined with ultra-fine grain carbide substrate ensures maximum tool life and superior hole quality in hardened materials.
Coating:
| Introduction of coating |
| Name | Hardness | Friction | Thermal stability | Color |
| AlTiN | 3500HV | 0.4 | 900℃ | Black |
| TiAlCrN | 3500HV | 0.4 | 900℃ | Dark purple |
| TiAlSiN | 3800HV | 0.4 | 1000℃ | Black |
| nACo | 4000HV | 0.45 | 1200℃ | Black |
| PT | 4000HV | 0.25 | 1200℃ | Black |
| nACo-blue | 4000HV | 0.45 | 1200℃ | Blue |
| TiN | 2500HV | 0.5 | 600℃ | Golden |
| TiXCo | 3800HV | 0.25 | 1100℃ | Bronze |
| Nano-TiXCo | 4000HV | 0.25 | 1200℃ | Bronze |
| CWP | 3800HV | 0.25 | 1100℃ | White Gold |
| AD | 4000HV | 0.45 | 1200℃ | Gray black |
| CrN | 2500HV | 0.2 | 700℃ | Silver |
| Ta-C | 5000-7000HV | 0.08-0.1 | 500℃ | Rain-bow color |
| DLC | 2500HV | 0.1 | 300℃ | Bright black |
Features:
✔ Naco Black Coating
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30% lower friction coefficient than standard TiN
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Exceptional heat resistance (stable to 900°C)
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Anti-adhesion properties for clean cutting
✔ Precision Ground Geometry
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True 90° (±0.01mm) flat bottom profile
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Self-centering design reduces walking
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Optimized flute geometry for chip control
✔ Ultra-Fine Carbide Substrate
Recommended Applications:
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Precision mold bases & cavities
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Aerospace structural components
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Medical implant machining
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Automotive die & fixture manufacturing
Available Specifications:
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Diameter Range: 1mm – 20mm (custom sizes available)
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Shank Type: Straight, reduced, or coolant-through (optional)
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Coating: Blue Nano (standard), TiAlN, or AlCrN for extreme conditions
Detailed Pictures:
Our workshop:
New Customer Special Offers:
To help you experience our premium products, we’re excited to offer the following exclusive promotions for first-time buyers:
1.Free Test Samples
Get free samples (total value ≤ $20 USD) when you cover the international shipping cost.
Perfect for evaluating our product quality and performance risk-free.
2.$50 USD Discount on First Order
New customers can enjoy a $50 discount on the first order of $500 or more.
A great way to start our partnership with extra value!
Our advantages:
1.Advanced grinding machines: All of our grinding machines are WALTER and SAACKE brands.
2.Advanced inspection machines: We have ZOLLER, OMEGA, PG1000, etc. For inspecting each carbide tools.
3.Fast feedback: we offer 24 hours online service
4.Strict quality control system:
We strictly adhere to a three-stage inspection process for each tool:
Raw material inspection
Semi-finished product inspection after production
Final inspection after coating (pre-shipment check)
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