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Home > Products >
Carbide Step Drill
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High Speed Tungsten Carbide Drill Bits 90 Degree / 120 Degree 3 Flute
All Category

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 Speed Tungsten Carbide Drill Bits 90 Degree / 120 Degree 3 Flute

Brand Name: AMG
MOQ: 3-10PCS
Payment Terms: T/T/Credit Card
Supply Ability: 30000-100000pcs per month
Detail Information
Product Description
Detail Information
Place of Origin:
CHINA
Certification:
ISO9001
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
Packaging Details:
Plastic tube
Supply Ability:
30000-100000pcs per month
Highlight:

120Degree Tungsten Carbide Drill Bits

,

3 Flute Drill Bit Tungsten

,

High Speed Tungsten Drill Bits

Product Description
High Speed Tungsten Carbide Drill Bits 90 Degree / 120 Degree 3 Flute
Product Specifications
Attribute Value
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
Product Overview

Our 3-Flute Carbide Step Drill Bit revolutionizes multi-diameter hole machining with its advanced tungsten carbide construction, precision AlTiN coating, and innovative through-coolant technology. Engineered for high-speed CNC applications, this step drill combines drilling, chamfering, and countersinking in a single operation, delivering unmatched efficiency when working with hardened steels, titanium alloys, and nickel-based superalloys.

Key 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.
Performance Advantages
  • 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 0.8 μm in stainless steel (vs. 1.6μm with HSS)
  • Reliability - Manufactured to ISO 9001 standards with 100% preshipment inspection
Industry 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)
Product Images
High Speed Tungsten Carbide Drill Bits 90 Degree / 120 Degree 3 Flute 0
Our Manufacturing Facility
High Speed Tungsten Carbide Drill Bits 90 Degree / 120 Degree 3 Flute 1
High Speed Tungsten Carbide Drill Bits 90 Degree / 120 Degree 3 Flute 2
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, etc. For inspecting each carbide tools.
  • Fast feedback: we offer 24 hours online service
  • 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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