Carbide Step Drill Bit With AlTiN Coating Spiral Flute Internal Coolant For Hard Metals

Introduction:

Engineered for extreme performance in hard metal machining, this carbide step drill bit features a wear-resistant AlTiN coating, high-efficiency spiral flutes, and precision internal coolant channels to conquer the most challenging drilling applications.

Features:

✔ Advanced AlTiN Coating

• Withstands temperatures up to 800°C

• Provides superior abrasion resistance for extended tool life

• Ideal for dry or semi-dry machining conditions

✔ Optimized Spiral Flute Design

• 30°-45° helix angle for improved chip evacuation

• Reduces cutting forces and prevents chip clogging

• Delivers smoother surface finishes vs. straight flute designs

✔ Internal Coolant System

• 2-4 coolant holes (Ø1.0-1.5mm) direct lubricant to cutting edges

• Enables higher feed rates and deeper hole drilling

• Prevents workpiece hardening in heat-sensitive alloys

✔ Solid Micro-Grain Carbide Substrate

• Sub-micron carbide grain structure for exceptional hardness

• Maintains edge integrity in materials up to HRC 65

• 3-5× longer lifespan than HSS or TiN-coated tools

✔ Multi-Step Geometry

• Eliminates tool changes for tapered holes, countersinking, and deburring

• Precision ground cutting edges for ±0.02mm dimensional accuracy

Advantages:

50% Higher Cutting Speeds vs. conventional coated drills

Exceptional Chip Control in gummy materials like Inconel and titanium

Reduced Power Consumption due to efficient cutting geometry

Interchangeable with standard ER collet and hydraulic chucks

Applications:

Aerospace - Drilling turbine blades, engine components

Medical Devices - Precision holes in surgical implants

Die/Mold Making - Hardened steel cavities (HRC 50+)

Energy Sector - Valve bodies, drilling equipment

Automotive - Transmission gears, turbocharger parts

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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