Custom CNC Drilling Services
Koonze Model delivers high-precision CNC drilling services, ideal for complex geometries and fine surface finishes. We ensure every hole is accurate, clean, and aligned to your exact design requirements.
- ±0.01 mm drilling accuracy for high-spec designs
- Supports multi-axis drilling for complex geometries
- Smooth surface finish—ready for assembly without additional processing
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Precision CNC Drilling Services You Can Rely On
Koonze Model provides high-precision CNC drilling services with fast turnaround and tight quality control. We specialize in complex geometries, fine tolerances, and clean hole finishes across a wide range of metals and plastics.
With advanced multi-axis machining and ISO 9001-certified processes, we ensure every hole is exactly where it should be—making us a trusted partner for high-spec components in demanding industries.
CNC Drilling Process at Koonze Model

Different CNC Drilling Operations
There are 12 main CNC drilling operations that are used for different purposes. Let’s explore each type, highlighting its technical specifications and applications.
Spot drilling creates a small indentation on the workpiece’s surface, acting as a guide for subsequent drilling. This step ensures accurate hole placement and prevents drill bit wandering, making it crucial for precision machining.
Drilling is the process of creating cylindrical holes in a workpiece using a rotating drill bit. It is versatile, allowing for various hole sizes and depths, and can be applied to materials such as metals, plastics, and composites. This operation is fundamental in CNC drilling, offering both speed and precision.
Reaming is used to smooth and finish pre-drilled holes to a specific size and tolerance. It improves the hole’s accuracy and surface finish, ensuring that the hole meets precise dimensional requirements. This operation is essential in industries like aerospace and automotive, where tight tolerances and smooth internal surfaces are critical.
Boring involves enlarging an existing hole to a precise diameter. It provides more accuracy than drilling and is often used when a hole’s diameter needs to be customized. Boring is ideal for high-precision applications requiring exact hole sizes, such as in custom manufacturing processes.
Counterboring creates a stepped hole, where the top section is wider to allow a fastener (like a bolt or screw) to sit flush with or below the surface of the workpiece. This operation is widely used in assembly applications where surface aesthetics and functionality are important, such as in aerospace and automotive industries.
Similar to counterboring, countersinking forms a conical hole that allows screw heads to sit flush with the surface of the workpiece. This technique is common in mechanical assemblies, improving both the functional and aesthetic quality of the part by ensuring fasteners are properly recessed.
Tapping creates internal threads within a drilled hole, allowing for the secure insertion of screws or bolts. This process requires precise control over drill depth and rotation to ensure the threads are accurately formed. Tapping is essential for applications in assembly processes, such as in the automotive or construction industries, where secure fastening is needed.
Micro-drilling is used to create very small holes, often in the micrometer range. This technique is vital for precision applications, such as in electronics for circuit boards or in medical devices. Micro-drilling allows for the production of tiny, intricate components with extremely high accuracy.
Center drilling involves creating a conical hole at the surface of the workpiece to guide deeper drilling operations. It ensures proper alignment and prevents misalignment during further drilling. This is particularly important for deep or complex drilling tasks where accuracy is crucial, such as in aerospace and machinery manufacturing.
Peck drilling is used to improve chip removal and cooling during deep hole drilling. The drill bit periodically retracts to break up chips and clear them from the hole, reducing clogging and overheating. This technique enhances drilling efficiency and is essential for deep, clean holes in materials prone to chip buildup.
Gun drilling is a specialized technique for creating deep, straight holes with high precision. The drill bit used is long and thin, often with internal coolant channels to maintain accuracy over extended depths. Gun drilling is used for applications requiring deep holes, such as in hydraulic systems, aerospace, and medical devices.
Get a Fast CNC Drilling Quote
Upload your part design and receive a competitive quote with lead times as short as 24 hours.
Our CNC Drilling Materials

Aluminum
Lightweight and corrosion-resistant, ideal for automotive, aerospace, and packaging industries.
- Aluminium 2007 / 3.1645 / Al-CuMgPb
- Aluminium 2017A / 3.1325 / Al-Cu4Mg
- Aluminium 5754 / 3.3535 / Al-Mg3
- Aluminium 6060 / 3.3206 / Al-MgSi
- Aluminium 6061 / 3.3211 / Al-Mg1SiCu
- Aluminium 6082 / 3.2315 / Al-Si1Mg
- Aluminium 7075 / 3.4365 / Al-Zn6MgCu

Steel
Steel is a strong, durable, and versatile material ideal for CNC machining, offering excellent machinability and high structural integrity for both functional prototypes and end-use parts.
- Steel 1.0038 / S235JR
- Steel 1.0503 / C45
- Steel 1.0511 / C40
- Steel 1.0570 /
- S355J2G3
- Steel 1.1191 / XC48H1 / C45E
- Steel 1.2379 / X153CrMo12 / SKD11, annealed
- Steel 1.2842 / 90MnCrV8
- Steel 1.7131 / 16MnCr5
- Steel 1.7218 / 25CrMo4
- Steel 1.7225 / 42CrMo4

Stainless steel
Stainless steel is a corrosion-resistant, high-strength material widely used in CNC machining for applications requiring durability, precision, and a clean surface finish.
- Stainless Steel 303 / 1.4305 / X10CrNiS18-9
- Stainless Steel 304 / 1.4301 / X5CrNi18.10
- Stainless Steel 304L / 1.4307 / X2CrNi18-9
- Stainless Steel 316 / 1.4401 / X5CrNiMo17122
- Stainless Steel 316L / 1.4404 / X2CrNiMo17-12-2
- Stainless Steel 316Ti / 1.4571 / X6CrNiMoTi17-12-2

Copper
Copper is a highly conductive and corrosion-resistant material, ideal for CNC machining of electrical components and thermal applications requiring excellent heat and electrical transfer.
- Copper E-Cu57 / 2.0060 / E-Cu58 / 2.0065

Brass
Brass is a machinable, corrosion-resistant alloy with excellent thermal and electrical conductivity, making it ideal for precision CNC parts in electronics, plumbing, and decorative applications.
- Brass Ms58 / 2.0401 / CuZn39Pb3

Titanium
Titanium is a lightweight, high-strength, and corrosion-resistant metal ideal for CNC machining parts that require exceptional performance in aerospace, medical, and high-stress environments.
- Titan Grade 5 / 3.7164 / 3.7165 / Ti-6Al-4V

Rigid plastics
Rigid plastics are lightweight, durable, and easy to machine, making them ideal for CNC parts that require good dimensional stability and resistance to wear in non-metal applications.
- ABS
- Acrylic
- Industrial PEEK
- Nylon 6 / PA 6
- PC (Polycarbonate)
- PEEK glass-filled
- Polypropylene (PP)
- POM / Delrin acetal
- PTFE / Teflon
- PVDF / Polyvinylidene fluoride
- UHMW PE / Ultra-high-molecular-weight polyethylene
Your Reliable CNC Drilling Partner
Uncompromising Precision
We deliver high-accuracy CNC parts with tolerances down to ±0.005 mm, ensuring your components meet the most demanding specifications.
Fast Turnarounds
From prototyping to production, our streamlined workflow enables delivery in as fast as 1 day—without compromising quality.
Broad Material Capability
With support for over 100 metals and plastics, we machine a wide range of materials to suit your exact design and performance needs.
Proven Reliability
As an ISO 9001 certified manufacturer with a 95%+ on-time delivery rate, we’re a trusted partner for consistent, high-quality results.
Applications of CNC Drilling

CNC drilling enables tight-tolerance holes in titanium and aluminum parts used in aircraft frames, engine mounts, and control systems.

From engine blocks to brake components, CNC drilling ensures consistency, durability, and scalability in high-volume production.

CNC drilling delivers the fine, accurate holes needed in stainless steel, titanium, and plastics for implants, surgical instruments, and housings.

Used for drilling heat sinks, connectors, and enclosures, CNC drilling supports tight layouts and clean finishes in copper, brass, and plastics.

CNC drilling produces reliable features in steel and alloys for equipment frames, hydraulic systems, and rotating machinery parts.

Ideal for producing mounting points, fastener holes, and design features in plastic and metal products with aesthetic or functional demands.
Alternatives to CNC Drilling
If CNC drilling isn’t the best fit for your application, other machining methods may offer more suitable solutions depending on the part’s geometry, material, or production needs:
A traditional method using handheld or benchtop drill presses. Ideal for low-volume work, simple geometries, or when flexibility and hands-on control are needed.
Milling can create holes along with complex contours and pockets. It’s ideal when drilling is combined with additional cutting operations in one setup.
A non-contact process using focused laser beams to create extremely small or high-aspect-ratio holes in hard or heat-sensitive materials.
Uses high-pressure water mixed with abrasives to cut through materials without heat. Suitable for delicate materials or when thermal distortion must be avoided.
Discuss Your Drilling Project with an Expert
Need technical advice or material guidance? Our engineers are here to help you move forward with confidence.
CNC milling factory

CNC machining is commonly used in metal fabrication for industries like automotive and aerospace, producing components such as gear blanks, shafts, and wheel hubs.

CNC plays a significant role in woodworking, enabling the creation of shaped wooden workpieces, intricate furniture, and more.

CNC drilling is used to create tiny, precise holes for circuit boards and microchips in electronic components, ensuring accuracy for miniature parts.

CNC drilling is vital for electrical components used in power transmission and distribution, ensuring reliable connections and optimal function.

CNC drilling is used to shape plastic parts with complex designs for consumer products, delivering accuracy and consistency across all plastic components.
Case Studies
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FAQs about Koonze Model's CNC Drilling Services
We can achieve drilling tolerances as tight as ±0.005 mm, depending on the material and hole depth. Standard tolerance is ±0.01 mm.
We offer lead times as fast as 1 day for urgent projects. Typical delivery ranges from 3–7 days based on part complexity and quantity.
Koonze Model supports over 100 materials, including metals like aluminum, steel, titanium, and copper, as well as rigid plastics such as ABS and POM.
Yes. Whether you need a single prototype or a batch of 10,000+ parts, we ensure consistent quality and precision at every scale.
Yes. We are ISO 9001 certified, ensuring strict quality management and traceability throughout the CNC drilling process.
Drilling Services Resources

