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Brand Name : AMG
Certification : ISO9001
Place of Origin : CHINA
MOQ : 3-10PCS
Payment Terms : T/T/Credit Card
Supply Ability : 30000-100000pcs per month
Delivery Time : 5-12 working days
Packaging Details : Plastic tube
Product name : Tungsten Carbide Drill Bits
Material : Tungsten carbide
Application : aluminium, cast iron, steel, inconel 718, titanium, etc
Coating : Uncoated (optional TiAlN for steel)
Helix : Customized
Type : Inner coolant end mill
Tungsten Carbide 3 Flute Step Drill Bit with AlTiN Coating Through Coolant Holes Multi Diameter Design for Steel Titanium Inconel CNC Milling
Introduction:
Features:
✔ Premium Tungsten Carbide Substrate – Ultra-fine grain structure (0.5μm) ensures extreme hardness (93.5 HRA) and wear resistance for machining materials up to HRC 60.
✔ 3-Flute Optimized Geometry – Provides 50% faster chip evacuation than 4-flute designs while maintaining stability in deep-hole drilling.
✔ AlTiN Nano-Coating Technology – Aluminum Titanium Nitride coating offers:
3,800 HV hardness (3x harder than uncoated carbide)
900°C oxidation resistance for dry machining capability
Low friction coefficient reducing built-up edge (BUE)
✔ Through-Coolant Holes (2-4 Channels) – Precision coolant delivery to cutting edges:
Reduces cutting temperature by 40% vs. standard drills
Extends tool life by 2-3x in titanium and Inconel
✔ Multi-Diameter Step Design – Single tool replaces 3-5 conventional drills with:
Customizable step increments (0.5mm/1.0mm)
Included angles: 90°, 120° (standard), or custom
✔ High-Speed Ready – Balanced for 8,000-12,000 RPM operations with G2.5 dynamic balance certification.
▶ Time Savings – Combines drilling + chamfering in one pass, reducing cycle times by 30%
▶ Cost Efficiency – 1 tool replaces multiple drill bits + countersinks
▶ Surface Finish – Achieves Ra 0.8μm in stainless steel (vs. 1.6μm with HSS)
▶ Reliability – Manufactured to ISO 9001 standards with 100% preshipment inspection
Applications:
Aerospace
Drilling fastener holes in titanium bulkheads (Ti-6Al-4V)
Composite/metal stacks with 0.02mm diameter consistency
Oil & Gas
Valve body machining in Inconel 718 and 17-4PH stainless
Medical
Precision holes in cobalt-chrome orthopedic implants
Automotive
High-volume drilling of hardened transmission gears (up to HRC 58)
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)
Related products:
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High Speed Tungsten Carbide Drill Bits 90 Degree / 120 Degree 3 Flute Drill Bit Images |