12mm TiSiN Coated Carbide Bull Nose End Mill R1 Corner Radius, 150mm OAL 70mm Cutting Length for Steel Hardened Alloys

Introduction:

This industrial-grade 12mm bull nose end mill features an extraordinary 150mm overall length (OAL) with 70mm cutting length, specifically engineered for deep cavity machining in hardened materials up to HRC65. The advanced TiSiN (Titanium Silicon Nitride) nano-composite coating provides maximum thermal protection in challenging applications where standard tools fail.

Features:

1. Extreme Reach Capability

• 150mm OAL / 70mm cutting length

• Special neck relief design prevents rubbing

• Maintains rigidity at 5:1 length-to-diameter ratio

2. Nano-Layered TiSiN Coating

• 1000°C+ thermal barrier protection

• 5-8X longer life than standard AlTiN

• Self-lubricating properties reduce built-up edge

3. High-Precision Carbide Substrate

• Sub-micron grain structure (0.3-0.5μm)

• Optimized core strength (92.5 HRA)

• Ground to aerospace tolerances (±0.008mm)

4. Vibration-Dampened Geometry

• Variable helix (37°/42°) eliminates harmonics

• Unequal flute spacing (82°/98°)

• R1 radius maintains corner integrity

Advantages:

✅ Longer Tool Life – AlTiCrN coating drastically reduces wear in abrasive materials.

✅ Higher Productivity – 5-flute design enables faster machining with excellent surface finish.

✅ Reduced Vibration – Engineered flute geometry minimizes chatter in hard materials.

✅ Versatile Application – Effective in dry, wet, or MQL (Minimum Quantity Lubrication) machining.

Applications:

• Deep Cavity Machining:

  • Mold cores & ejector pockets

  • Turbine blade root features

  • Automotive die cavities

  Aerospace Components:

  1. Engine casing grooves

  2. Landing gear structural pockets

  3. Wing spar channels

  Medical Manufacturing:

  • Orthopedic implant contours

  • Surgical instrument profiles

  • Dental mold details

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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