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CNC Drilling

Consistent, high-accuracy drilling for various materials and diameters. Start your order with us today.

Brass Pipe Fitting
Machining Operation

What is CNC Drilling?

CNC Drilling is used to produce accurate, repeatable holes in a wide range of materials. Our advanced CNC machines ensure clean edges, precise depths, and high-speed performance, supporting everything from prototype development to high-volume production with consistent quality.

CNC Drilling Tolerances

Parameter Specification
Maximum Hole Depth Up to 80” (2,032 mm) deep, depending on material and hole diameter.
Hole Diameter Range From 0.125” to 2.0” (3.18 mm to 50.8 mm). Larger diameters available upon request.
Standard Lead Time 5–10 business days, based on hole depth and material.
Depth-to-Diameter Ratio Up to 100:1 with specialized tooling and coolant delivery.
Tolerances Diameters held to ±0.002” (±0.051 mm). Tighter tolerances upon review.
Straightness Hole straightness within 0.001” per inch (0.025 mm per 25.4 mm), depending on depth.

High-Accuracy CNC Drilling for Consistent Results

Yicen Precision offers CNC Drilling with precise hole placement and clean finishes for complex parts. Utilizing multi-axis drilling machines, we handle varied hole sizes and patterns to strict tolerances. This service supports reliable assembly and fastening, ensuring your parts meet demanding quality standards.

Drilling Metal Workpiece

Materials for CNC Drilling

Engineers and leading manufacturers trust Yicen Precision for fast iterations and durable, high-performance parts. Whether for prototyping or full-scale production, our extensive material selection ensures precision, strength, and reliability for any CNC machining project.

Aluminum 6061-T6
Aluminum 7075-T6
Aluminum 2024-T3
Aluminum MIC-6
Aluminum 7050-T7451
Aluminum 5083

Brass C360
Brass 260
C932 Bearing Bronze
C954 Aluminum Bronze

Surface Finishing for CNC Drilling

CNC drilling produces clean, accurate holes in metal, plastic, and composite parts. While drilled surfaces are generally functional, applying post-drilling finishes can improve part longevity, surface integrity, and appearance, especially for components exposed to wear, moisture, or public view.

As-Milled

 The default finish with visible tool marks and potential minor burrs at entry or exit points. Ideal for internal features or when aesthetics are not a concern

Anodizing (Type II & Type III)

Type II: Enhances corrosion resistance and provides aesthetic color options. Common for aluminum parts.
Type III (Hard Anodizing): Offers a thicker, more durable finish with superior wear resistance.

Chemical Deburring

 A mechanical or manual process that removes sharp edges or residual material left around drilled holes.

Zinc Plating

Applies a thin zinc coating to drilled metal parts for excellent corrosion protection. Common in hardware, automotive, and industrial applications where moisture resistance is critical.

Custom Finishes

A chemical treatment for stainless steel parts that removes contaminants and enhances corrosion resistance, making it ideal for drilled components used in harsh environments.

Electropolishing

Ideal for stainless steel parts. This electrochemical process smooths drilled surfaces, removes burrs, and enhances corrosion resistance while achieving a bright, clean finish.

Powder Coating

 Provides a uniform, durable outer layer that protects against corrosion and wear. Available in a wide variety of colors. Best for metal parts with exposed surfaces.

Passivation

Need a specific surface treatment for drilled components? Submit an RFQ and our team will help you select or develop the best finish for your application.

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Turn Concepts Into Precision-Engineered Parts

Yicen Precision specializes in high-precision CNC manufacturing, transforming your ideas into top-quality, functional components with speed and accuracy. Using advanced technology and expert craftsmanship, we deliver production-ready parts built to your exact specifications, no matter the complexity.
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Elevate Precision with Yicen Precision’s Advanced CNC Drilling Services

For manufacturing that demands exact hole placement, consistent depth, and flawless finish, CNC drilling is a critical process. Yicen Precision delivers expert CNC drilling services designed to meet stringent tolerances and improve assembly accuracy across a broad range of industries.

Precision Drilling Tailored to Your Needs

CNC drilling uses computer-controlled equipment to create precise holes in metals, plastics, and composites. This automated process ensures repeatability and accuracy that manual drilling can’t match, especially when dealing with complex patterns or large production runs.

At Yicen Precision, our CNC drilling capabilities are built for versatility from simple through-holes to multi-axis angled drilling. This flexibility allows us to support projects that require intricate hole configurations or deep drilling with exact specifications.

Why Choose Yicen Precision for CNC Drilling?

  • Exact Hole Placement: Advanced CNC control guarantees positioning accuracy within microns.
  • Versatile Material Handling: Drilling on steel, aluminum, plastics, and specialty materials.
  • Complex Patterns: Multi-axis machines handle angled and deep hole drilling with ease.
  • High Efficiency: Fast setup and drilling speeds minimize production times.
  • Quality Focused: Every drilled hole undergoes inspection to ensure dimensional compliance.

Our experienced team collaborates closely with customers to optimize drilling strategies, reduce waste, and deliver consistent results every time.

Industries Relying on CNC Drilling

CNC drilling is essential in aerospace, automotive, electronics, and industrial manufacturing, where precision hole placement affects part function and assembly integrity. Yicen Precision’s drilling services support prototype development, small batch production, and high-volume manufacturing.

Commitment to Excellence

Yicen Precision prioritizes quality and reliability in every project. We maintain strict quality control protocols, ensuring that drilled components meet all dimensional and surface finish requirements, helping you maintain high standards in your final product.

Contact us today to discuss how our drilling expertise can enhance your manufacturing process.

Yicen Machining Solutions

Whether you’re creating a small batch of custom parts or scaling up for high-volume production, Yicen machining services offer the flexibility you need.
Rapid Prototyping
CNC rapid prototype machining is perfect for creating engineering or production prototypes that closely resemble the final product in both appearance and functionality. At Yicen, we offer instant quotes and fast delivery, providing you with precise, high-quality CNC machined prototypes for your needs.
Low Volume Manufacturing
Low volume CNC machining often acts as a bridge between prototyping and mass production for new and emerging production. With Yicen, this process becomes easier, more efficient, and cost-effective, allowing you to scale production quickly while maintaining high-quality standards.
End-use Production
CNC production machining is the best solution for producing a thousand parts or more efficiently. Leveraging a diverse selection of materials and automation and multi-axis capabilities, Yicen delivers high-volume production with tight tolerances, superior dimensional accuracy, high reliability and fast turnaround times.

Insights & Articles

Explore Machining services blog for expert insights on CNC machining, industry trends, manufacturing tips, and technology updates—designed to keep you informed, inspired, and ahead in precision engineering.

Frequently Asked Questions

CNC Drilling

  • How precise are your drilled holes?

    We maintain positioning tolerances within microns. 

  • Do you offer prototype drilling services?

    Yes, we provide fast prototypes as well as production runs. 

  • What is the maximum hole diameter you can drill?

    We drill holes from very small diameters up to several inches. 

  • Can you drill angled or tapered holes?

    Yes, multi-axis CNC drilling machines handle complex hole angles. 

  • What materials can you drill?

    Steel, aluminum, plastics, composites, and more. 

Get In Touch With Us!
Prompt response guaranteed within 12 hours
🔐 All uploads are secure and confidential