Skip to content Experience advanced CNC drilling services designed to deliver flawlessly accurate holes across metals, plastics, and composite materials. Whether you’re producing small prototypes or high-volume parts, our custom CNC drilling services ensure clean edges, consistent depths, and tight-tolerance accuracy for every project. Each hole, each diameter, drilled with precision, reliability, and engineering excellence.
CNC drilling is a high-accuracy process used to create perfectly aligned, repeatable holes in a wide range of materials. Our precision CNC drilling services guarantee smooth surfaces, accurate depths, and stable results using advanced multi-axis machines. Designed for both prototyping and scaled production, this method ensures consistency while supporting diverse applications through dependable CNC hole drilling services.
| 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. |
Our advanced drilling systems deliver precise hole placement across intricate components. With multi-axis technology, we accommodate various hole sizes, threading requirements, countersinks, and complex configurations. Every part is machined for dependable assembly, robust fastening, and long-term performance — backed by the expertise of a trusted CNC drilling company known for quality and repeatability.
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
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.
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
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.
A mechanical or manual process that removes sharp edges or residual material left around drilled holes.
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.
A chemical treatment for stainless steel parts that removes contaminants and enhances corrosion resistance, making it ideal for drilled components used in harsh environments.
Ideal for stainless steel parts. This electrochemical process smooths drilled surfaces, removes burrs, and enhances corrosion resistance while achieving a bright, clean finish.
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.
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.
Optimize your designs for manufacturability with our helpful guidelines. Our experts provide feedback on your custom machined part for the best results in CNC Drilling.
| Features | Recommended Size |
|---|---|
| Radii | Internal corners should have a minimum radius of 0.5 mm to avoid tool wear and ensure efficient chip removal during drilling. Larger radii (up to 2 mm) improve drill bit access and part longevity. |
| Threads and Tapped Holes | For standard drilled holes, ensure a diameter-to-depth ratio of 1:3 for best results. For tapping, the hole diameter should be 0.8x the nominal thread diameter for optimal threading. |
| Minimum Wall Thickness | For drilling, ensure a minimum wall thickness of 2 mm for metals and 3 mm for plastics to avoid material deformation and ensure stability during the process. |
| Text | For drilled text or markings, the minimum character height should be 2 mm, and the depth should be at least 0.5 mm to maintain visibility and durability. |
| Holes | Minimum hole diameter should be 2 mm for most materials. Larger diameters or deeper holes may require slower feed rates and specific tool selection to avoid tool wear. |
Explore our advanced precision CNC drilling services, where every hole, depth, and diameter is engineered with absolute accuracy. From fine-tolerance prototypes to high-volume production parts, our custom CNC drilling services ensure smooth finishes, perfect alignment, and consistent repeatability across all materials. Every bore, every pattern, crafted with exceptional quality, stability, and attention to detail.
We specialize in converting your ideas into high-quality, functional components with unparalleled speed and accuracy. With advanced technology and expert craftsmanship, we create parts that meet the most complex specifications.
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 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.
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.
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.
How do I get a quote for CNC drilling services?
To receive a quote for CNC drilling services, simply provide us with your design files, material specifications, and quantities. Our team will review your project requirements and offer a comprehensive quote, including pricing, lead times, and any additional services that may be required. We are committed to transparent communication and will work with you closely to ensure your project is completed to your satisfaction.
What industries use CNC drilling services?
CNC drilling is used across a wide range of industries, including aerospace, automotive, electronics, medical device manufacturing, and construction. It is essential for producing components that require high precision and repeatability, such as circuit boards, engine parts, and structural components. Yicen Precision provides CNC drilling solutions that meet the specific needs of each industry, ensuring high-quality results for all projects.
How precise is CNC drilling at Yicen Precision?
At Yicen Precision, our CNC drilling services achieve high precision, with tolerances as tight as ±0.001 inches (±0.025 mm), depending on the material and part design. This level of precision is essential for producing parts that need to fit together with tight tolerances or function in critical applications like aerospace or medical device manufacturing. We maintain stringent quality control measures to ensure that all drilled holes meet the required specifications.
What types of holes can CNC drilling create?
CNC drilling can create a variety of holes, including straight holes, blind holes, through holes, countersinks, counterbores, and tapered holes. The process allows for high precision in hole placement, which is critical for industries requiring tight tolerances. CNC drilling can also handle multiple hole patterns, making it ideal for producing parts with a large number of holes or complex hole geometries.
What is the difference between CNC drilling and manual drilling?
The key difference between CNC drilling and manual drilling lies in the level of precision and automation. CNC drilling is fully automated, meaning that the drill is controlled by a computer based on precise instructions from a digital design file. This ensures consistent hole size, depth, and placement across large production runs. In contrast, manual drilling relies on the skill of the operator, which can lead to inconsistencies and higher chances of error, especially in large-scale or complex projects.
What materials can Yicen Precision drill using CNC technology?
Yicen Precision offers CNC drilling services for a wide range of materials, including metals like aluminum, stainless steel, and titanium, as well as plastics, composites, and wood. Our CNC drills are designed to handle both hard and soft materials, making them versatile enough for various industrial applications. We ensure that each material is drilled with the appropriate speed, feed rate, and tool selection to achieve optimal results.
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