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Home > Products >
Carbide Step Drill
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High Performance Internal Coolant Drill H6 Carbide Bits For Aluminum
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Carbide Drill Bit

Through Coolant Drill

Carbide Deep Hole Drill

Carbide Step Drill

Heavy Duty Drill Bit

Tungsten Carbide Tools

Carbide End Mill

Custom End Mill

Carbide Thread Milling Cutter

Solid Carbide Tap

PCD Milling Cutter

Carbide End Mill Cutter

Solid Carbide Reamer

Carbide Boring Tool
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High Performance Internal Coolant Drill H6 Carbide Bits For Aluminum
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High Performance Internal Coolant Drill H6 Carbide Bits For Aluminum

Brand Name: AMG
MOQ: 3-10PCS
Packaging Details: Plastic tube
Payment Terms: T/T/Credit Card
Detail Information
Product Description
Detail Information
Place of Origin:
CHINA
Certification:
ISO9001
Product Name:
Internal Coolant Drill
Material:
Grade K30 Carbide (10% Cobalt)/customized
Application:
Aluminium, Cast Iron, Steel, Inconel 718, Titanium, Etc
Coating:
AlTiSiN. TiSiN, AlTiN, TiAlN, CrN, ZrN
Shank:
Cylindrical (Weldon Flat Optional)
Precision:
H6
Supply Ability:
30000-100000pcs per month
Highlight:

Internal Coolant Drill h6

,

High Performance Internal Coolant Drill

,

Aluminum Internal Coolant Drill

Product Description
High Performance Internal Coolant Drill H6 Carbide Bits For Aluminum
Product Specifications
Product name Internal Coolant Drill
Material Grade K30 carbide (10% cobalt)/customized
Application Aluminium, cast iron, steel, Inconel 718, titanium, etc
Coating AlTiSiN, TiSiN, AlTiN, TiAlN, CrN, ZrN
Shank Cylindrical (Weldon flat optional)
Precision h6
Product Overview

This high-performance carbide step drill is specifically engineered for aluminum machining, featuring internal coolant channels and a multi-diameter design to combine drilling, chamfering, and deburring in a single operation. Designed for CNC machining centers, it provides superior chip evacuation, reduced heat buildup, and extended tool life - ideal for high-volume aluminum production.

Key Features
Internal Coolant Channels (Through-Tool Cooling)
  • 2-4 precision coolant holes (Ø1.0-1.5mm) for direct lubrication
  • Reduces heat & prevents built-up edge (BUE) in sticky aluminum alloys
Multi-Diameter Step Design
  • Integrated diameter transitions (e.g., 6mm → 8mm → 10mm)
  • Eliminates tool changes for drilling + chamfering in one pass
Optimized for Aluminum
  • Polished flutes minimize chip adhesion
  • 3-4 flute spiral design (30°-45° helix) for smooth chip evacuation
Solid Carbide Construction
  • Micro-grain carbide (K30/K40 grade) for wear resistance
  • Sub-micron grain structure ensures edge sharpness
High-Speed CNC Ready
  • Balanced geometry reduces vibration at 15,000+ RPM
  • h6 tolerance shank for precision collet/chuck mounting
Performance Advantages
40% Faster Machining - Combines drilling + chamfering operations
2X Longer Tool Life vs. HSS drills (no edge welding in aluminum)
Mirror Finishes (Ra ≤0.8µm) with polished flutes
No Chip Clogging - Coolant + spiral flutes clear chips efficiently
Typical Applications
Electronics
  • Heat sink mounting holes (6061/6063 aluminum)
  • PCB fixture plates
Automotive
  • Lightweight engine blocks (A380 die-cast aluminum)
  • Battery tray drilling
Aerospace
  • Aircraft structural components (7075-T6)
  • Drilling + chamfering in thin-wall parts
General Machining
  • Multi-diameter holes in aluminum extrusions
  • Deburring soft alloy castings
Product Images
High Performance Internal Coolant Drill H6 Carbide Bits For Aluminum 0 High Performance Internal Coolant Drill H6 Carbide Bits For Aluminum 1
Manufacturing Facility
High Performance Internal Coolant Drill H6 Carbide Bits For Aluminum 2 High Performance Internal Coolant Drill H6 Carbide Bits For Aluminum 3
New Customer Special Offers
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.

$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 Manufacturing Advantages
  • Advanced grinding machines: All of our grinding machines are WALTER and SAACKE brands
  • Advanced inspection machines: We have ZOLLER, OMEGA, PG1000 for inspecting each carbide tool
  • Fast feedback: 24 hours online service
  • Strict quality control system: Three-stage inspection process (raw material, semi-finished product, final coated product)
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