CNC Drilling Parts
Precision CNC drilled components where hole position, depth and finish are the critical characteristics of the part.
- Tolerance0.005 mm to 0.01 mm
- Surface roughnessLess than Ra 0.2 on machined faces
- EquipmentDrilling machines, 3-axis and 4-axis CNC machining centres
- MaterialsAluminum, steel, stainless steel, titanium, brass, copper and plastics
- Secondary operationsTapping, counterboring, reaming, deburring and surface finishing
Category: CNC Machining Parts
Product Overview
CNC drilling parts are components whose defining features are holes: through holes, blind holes, tapped holes, counterbores and deep holes positioned to a tight pattern. Position accuracy matters more than almost anything else on these parts, because a hole a fraction out of place will not accept the mating fastener or dowel.
We produce drilled components on our drilling machines and machining centres, with hole positions verified on the coordinate measuring machine before a production run is released.
Key Benefits
Accurate Hole Positioning
Patterns verified on the CMM at first article so the part assembles correctly.
Consistent Hole Quality
Controlled feeds and speeds give clean holes without burrs that would need hand work.
Threading In The Same Setup
Tapping is performed without re-fixturing, so thread and hole stay concentric.
Multiple Materials
Aluminum, steel, stainless steel, titanium, brass and plastics.
Application Scenarios and Who It Is For
- Mounting plates and manifolds
- Flanges and connection blocks
- Housings requiring accurate fastener patterns
- Heat exchanger and cooling components
- Assembly fixtures and jigs
If your application is not listed, send the drawing anyway. Most of our work arrives as a part nobody else wanted to quote.
Technical Specifications
| Tolerance | 0.005 mm to 0.01 mm |
|---|---|
| Surface roughness | Less than Ra 0.2 on machined faces |
| Equipment | Drilling machines, 3-axis and 4-axis CNC machining centres |
| Materials | Aluminum, steel, stainless steel, titanium, brass, copper and plastics |
| Secondary operations | Tapping, counterboring, reaming, deburring and surface finishing |
| Inspection | Coordinate measuring machine, thread gages, first piece and final inspection |
Manufacturing Process and Quality Control
Drawing Review
Our engineers review manufacturability, confirm tolerances and raise anything in the drawing that would cause a problem before production starts.
Sample Approval
Free samples are offered prior to mass production, with first piece inspection recorded against your drawing.
Production Control
In-process inspection at a set frequency during the run, using the coordinate measuring machine and gauges in our inspection room.
Surface Treatment
Anodizing, sand blasting, polishing, electroplating and powder coating applied in house after deburring and cleaning.
Final Inspection
The finished lot is checked against the drawing before packing, with certification issued for the stages you require.
Packing and Delivery
Protective packing appropriate to the part, dispatched within the agreed delivery date.
Customization Options
- Material — specify a grade from our catalog, or describe the function and our engineers will recommend one.
- Tolerance — standard machining tolerance is 0.005 to 0.01 mm; tighter callouts are discussed at quotation.
- Surface finish — anodized, sand blasted, polished, electroplated, powder coated or as machined.
- Marking — laser engraving and CNC engraving for part numbers and logos.
- Quantity — from a single prototype through to long production contracts.
- Certification — certification provided at each stage on request.
Product Gallery
Product FAQ
How accurate are your hole positions?
Machining tolerance is 0.005 to 0.01 mm, and positions are verified against your drawing on the CMM at first article.
Can you drill deep holes?
Send the depth to diameter ratio with your enquiry. Deep holes need peck cycles or specialised tooling, which affects cycle time and price.
Do you deburr drilled parts?
Yes, deburring is part of the process, and it is also the first step before any surface treatment.
How do I order this part?
Do you offer free samples?
Yes, free samples are offered prior to mass production so you can confirm the part before committing to a run.
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Learn MoreRequest A Quote For CNC Drilling Parts
Send your drawing and quantity. Our engineers reply with price, lead time and any manufacturability notes.