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.

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Upload 3D CAD files (STEP STP SLDPRT IPT PRT SAT IGES IGS CATPART X-T OBJ STL files) or common formats like Word, Excel, PPT, and images.
precision cnc drilling you can rely on

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

1
CAD Design Preparation
The CNC drilling process starts with your part design. Once we receive your CAD file with hole specifications, our team takes it from there.
2
Tool and Material Setup
We select the right drill bits or end mills and securely mount both the tool and your chosen material on the CNC machine.
3
CNC Program Loading
Our engineers convert your design into a CNC program and load it into the machine’s control system.
4
Machine Initialization
The CNC machine positions the tool at the correct starting point and gets ready for drilling.
5
Automated Drilling
Drilling is performed with precision and consistency, exactly as defined in your design.
6
Post-Processing Check
We inspect the final part for accuracy, finish, and any defects before it’s ready for delivery.
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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

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

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

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

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

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.

Countersinking

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

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

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

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

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

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.

Vibratory Drilling
Vibratory drilling integrates vibration into the drilling process to improve cutting efficiency and extend tool life. The oscillation helps optimize material removal rates and reduces the likelihood of tool failure. This technique is particularly effective for hard-to-machine materials and in situations where high productivity and quality are required.

CNC Drilling Precision: Sample Parts Gallery

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Our CNC Drilling Materials

cnc drilling materials aluminum

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

 

cnc drilling materials steel

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
cnc drilling materials stainless steel

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
cnc drilling materials copper

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

 

cnc drilling materials brass

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

 

cnc drilling materials titanium

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
cnc drilling materials rigid plastics

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

industries aerospace
Aerospace

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

industries automotive
Automotive

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

medical treatment
Medical Devices

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

electronics
Electronics

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

industrial equipment
Industrial Equipment

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

consumer products
Consumer Products

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:

Manual Drilling

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

Milling can create holes along with complex contours and pockets. It’s ideal when drilling is combined with additional cutting operations in one setup.

Laser Drilling

A non-contact process using focused laser beams to create extremely small or high-aspect-ratio holes in hard or heat-sensitive materials.

Waterjet Cutting

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.

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Case Studies

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FAQs about Koonze Model's CNC Drilling Services

What drilling tolerances can Koonze Model achieve?

We can achieve drilling tolerances as tight as ±0.005 mm, depending on the material and hole depth. Standard tolerance is ±0.01 mm.

How fast can I get my CNC drilled parts?

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.

What materials do you support for CNC drilling?

Koonze Model supports over 100 materials, including metals like aluminum, steel, titanium, and copper, as well as rigid plastics such as ABS and POM.

Can you handle both prototyping and mass production?

Yes. Whether you need a single prototype or a batch of 10,000+ parts, we ensure consistent quality and precision at every scale.

Is Koonze Model ISO certified?

Yes. We are ISO 9001 certified, ensuring strict quality management and traceability throughout the CNC drilling process.

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