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R 系列双刃带钻头（ZU 钢铸铁通用 / ZN 铝铜 / ZM 不锈钢）

One drill family for steel, aluminum and stainless — with dual margin support and 0.01mm hole tolerance

R Series Double Margin Solid Carbide Drill (ZU-0380-3E-R) is built for stable, high-precision holemaking across different workpiece materials. Pick the type that matches your material:

  • ZU: general machining of steel and cast iron
  • ZN: aluminum, copper and other non-ferrous metals
  • ZM: stainless steel

The dual margin support structure reinforces the drill during cutting, while the dedicated protection edge resists chipping and keeps cutting light and smooth. Hole tolerance is held within 0.01mm, and the edge passivation treatment gives you smoother, stronger cutting edges. That means reliable roughness, position accuracy and hole diameter consistency for production drilling.

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R 系列双刃带钻头（ZU 钢铸铁通用 / ZN 铝铜 / ZM 不锈钢）
Key Advantages

Built for Reliability in the Field

Each part is engineered and QC'd against the exacting standards your equipment demands.

Double margin support keeps the drill stable in the cut, so you get less deflection and more consistent holes

Double margin support keeps the drill stable in the cut, so you get less deflection and more consistent holes.

Hole tolerance within 0

01mm — good for production runs where hole size and position need to stay tight.

Dedicated protection edge resists chipping, so the drill keeps cutting light and smooth even in tough spots

Dedicated protection edge resists chipping, so the drill keeps cutting light and smooth even in tough spots.

Engineered Around Your Workflow
Feature

Engineered Around Your Workflow

R Series Double Margin Solid Carbide Drill (ZU-0380-3E-R) is built for stable, high-precision holemaking across different workpiece materials. Pick the type that matches your material:

  • ZU: general machining of steel and cast iron
  • ZN: aluminum, copper and other non-ferrous metals
  • ZM: stainless steel

The dual margin support structure reinforces the drill during cutting, while the dedicated protection edge resists chipping and keeps cutting light and smooth. Hole tolerance is held within 0.01mm, and the edge passivation treatment gives you smoother, stronger cutting edges. That means reliable roughness, position accuracy and hole diameter consistency for production drilling.

Where It Works
Feature

Where It Works

  • General drilling of steel and cast iron (ZU type) — works well for fixture and general machining jobs.
  • Aluminum, copper and other non-ferrous metals (ZN type) — handles gummy materials with smooth chip flow.
  • Stainless steel drilling (ZM type) — designed to resist work hardening and edge wear.
  • High-precision production holemaking where 0.01mm tolerance is required.
  • Stable drilling operations that need smooth chip evacuation and long tool life, such as multi-spindle or CNC production runs.
Real World

Trusted Across Industries

From mining fleets to manufacturing lines, this part ships globally and runs under load.

Proven in thousands of installations across mining, construction, energy and heavy manufacturing. Designed for 24/7 operation and backed by a responsive engineering support team.

Gallery

Detailed Visual Reference

Inspect every critical surface, tolerance and finish before you commit.

R 系列双刃带钻头（ZU 钢铸铁通用 / ZN 铝铜 / ZM 不锈钢） gallery
R 系列双刃带钻头（ZU 钢铸铁通用 / ZN 铝铜 / ZM 不锈钢） gallery
RFQ

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Specifications

Technical Specifications

Key parameters below. Full dimensional drawings, tolerance sheets and material certificates available on request.

Series
R Series Double Margin Solid Carbide Drill
Model
ZU-0380-3E-R
Material
Solid carbide
Type Options
ZU for steel and cast iron; ZN for aluminum and copper; ZM for stainless steel
Hole Tolerance
Within 0.01mm
Design Features
Double margin support, dedicated protection edge, edge passivation treatment
Performance
Smooth chip evacuation, long tool life, reliable roughness and position accuracy
FAQ

Questions Buyers Often Ask

Which drill type should I choose for my workpiece material?
Use ZU for steel and cast iron, ZN for aluminum, copper and other non-ferrous metals, and ZM for stainless steel. Matching the type to the material is the main thing for stable cutting and tool life.
What hole tolerance can this drill achieve?
The R Series double margin design holds hole tolerance within 0.01mm under appropriate machining conditions. That makes it suitable for high-precision holemaking where size and position need to stay tight.
What are the benefits of the double margin design?
The dual margin support structure improves drilling stability and protection. Together with the dedicated protection edge and edge passivation, it helps prevent chipping and keeps cutting light and smooth.
Is chip evacuation reliable in continuous drilling?
Yes. The drill is designed for smooth chip evacuation, which supports stable drilling and long tool life in production runs. You get fewer chip packing issues and less downtime.
How is quality assured before shipment?
Each batch is checked for edge condition, dimensional accuracy and appearance. Share your machining requirements and we can confirm the suitable specification and quality documentation.
What is the typical lead time?
Lead time depends on model and order quantity. Contact us with your required types and quantities and we will confirm a delivery schedule.