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EadeTech is a China-based specialty metal machining manufacturer focusing on high-performance materials such as Titanium alloys, Nickel superalloys, Tungsten, Tantalum, Niobium, and Molybdenum. Our CNC boring services deliver precision holes, enlarged bores, and internal features for aerospace, medical, automotive, electronics, and industrial components.
Explore more at https://www.eadetech.com.
CNC boring is essential for:
Achieving exact internal diameters with tight tolerances
Enlarging pre-drilled holes while maintaining roundness
High-precision alignment for assembly components
Smooth internal surface finishes for aerospace, medical, and industrial applications
At EadeTech, we specialize in CNC boring of diameters from 3 mm up to 300 mm, with tolerances down to ±0.002 mm and Ra 0.05–0.4 µm surface finishes.
Material Expertise
Titanium alloys: Ti‑6Al‑4V, Ti‑6Al‑7Nb
Nickel superalloys: Inconel 718, Hastelloy, Waspaloy
Refractory metals: Tungsten, Tantalum, Molybdenum
Hole & Bore Tolerances
Standard: ±0.005 mm
High-precision: ±0.002 mm for aerospace and medical components
Bore Size & Depth Range
Diameters: 3–300 mm
Depths: 10–400 mm
High aspect ratio internal bores: L/D up to 80:1
Batch Flexibility
Prototype: 1–5 pieces
Small-batch production: 10–100 pieces
Full production runs: >500 pieces
| Material | Bore Diameter (mm) | Max Depth (mm) | Tolerance | Surface Finish (Ra µm) | Typical Batch Qty |
|---|---|---|---|---|---|
| Ti‑6Al‑4V | 3–200 | 300 | ±0.002–0.005 | 0.05–0.3 | 10–50 |
| Inconel 718 | 5–150 | 250 | ±0.002–0.005 | 0.1–0.4 | 20–100 |
| Tungsten | 5–100 | 200 | ±0.005 | 0.2–0.6 | 5–50 |
| Tantalum | 3–120 | 250 | ±0.002–0.005 | 0.1–0.5 | 10–50 |
Engine housings, hydraulic components, and structural bores
Precise internal diameters for shaft fits and assemblies
Surgical instruments, implants, prosthetic joints
Micro-bores for pins, screws, and fixation devices
Valve bodies, manifolds, and tooling components
Multi-bore components for functional assembly
Heat exchanger channels, connector housings, enclosures
Smooth, precise internal surfaces for fit and thermal performance
| Industry | Material | Bore Diameter (mm) | Depth (mm) | Tolerance | Key Feature |
|---|---|---|---|---|---|
| Aerospace | Ti‑6Al‑4V | 5–150 | 50–300 | ±0.002 | Load-bearing, alignment-critical bores |
| Medical | Tantalum | 3–30 | 10–50 | ±0.002 | Implant fixation bores |
| Industrial | Tungsten | 5–100 | 50–200 | ±0.005 | Tooling & manifold internal bores |
| Electronics | Inconel 718 | 5–50 | 5–100 | ±0.002 | Smooth micro-bores for connectors |
CNC Boring Accuracy
Achieves exact internal diameters, roundness, and surface finish
Multi-axis boring for angled and offset bores
Material-Specific Strategies
Titanium: low speed, high feed to reduce heat
Nickel alloys: CBN/PCD tools for wear resistance
Tungsten & refractory metals: incremental depth boring
Deep Bore Solutions
High aspect ratio bores up to L/D 80:1
Gun boring or boring bars for distortion-free results
Post-Boring Finishing
Reaming, polishing, deburring for tight tolerance, smooth surfaces
| Machine Type | Max Workpiece Size (mm) | Axis | Material Compatibility | Notes |
|---|---|---|---|---|
| 5-Axis CNC Borer | 350×250×150 | 5 | Ti, Nickel, Tungsten, Tantalum | Angled & multi-bore precision |
| Deep Bore CNC | 300×200×120 | 3 | Ti, Inconel | L/D up to 80:1 |
| Micro-Bore CNC | 150×120×80 | 3 | Ti, Tantalum | 3–10 mm diameter holes |
| Multi-Bore CNC | 400×300×200 | 3 | Ti, Nickel, Tungsten | Multi-hole high-volume production |
EadeTech ensures precision boring accuracy with:
CMM inspection for diameter, roundness, and bore position
Surface roughness measurement for Ra control
Depth verification using digital gauges
Batch traceability for prototypes and small-batch runs
| Measurement | Tool/Method | Tolerance | Inspection Frequency |
|---|---|---|---|
| Bore Diameter | CMM / Plug gauges | ±0.002–0.005 mm | 100% |
| Depth | Digital depth gauge | ±0.005 mm | 100% |
| Roundness | CMM | ±0.002 mm | 100% |
| Surface Finish | Ra tester | 0.05–0.4 µm | 10% batch |
CNC boring is ideal for prototypes and small-batch production:
Validate internal dimensions before full production
Ensure fit, alignment, and assembly performance
Cost-effective for functional testing and evaluation
| Material | Prototype Qty | Small-Batch Qty | Lead Time | Tolerance | Surface Finish (Ra µm) |
|---|---|---|---|---|---|
| Ti‑6Al‑4V | 1–5 | 10–50 | 1–2 weeks → 2–4 weeks | ±0.002 | 0.05–0.3 |
| Inconel 718 | 1–5 | 20–100 | 2–3 weeks → 3–5 weeks | ±0.002 | 0.1–0.4 |
| Tungsten | 1–3 | 5–50 | 2–4 weeks → 3–6 weeks | ±0.005 | 0.2–0.6 |
| Tantalum | 1–5 | 10–50 | 2–3 weeks → 2–4 weeks | ±0.002 | 0.1–0.5 |
Tool Wear & Heat Generation
Hard metals accelerate wear; solution: CBN/PCD tools, optimized feeds, and coolant
High-Aspect Ratio Bore Accuracy
Deep bores may deflect; solution: rigid boring bars and staged depth passes
Surface Finish Control
Reaming and micro-finishing post-boring ensures functional, burr-free bores
| Material | Tool Type | Tool Life (hrs) | Feed Rate | Coolant | Surface Finish (Ra µm) |
|---|---|---|---|---|---|
| Ti‑6Al‑4V | Carbide | 15–30 | 0.01–0.05 mm/rev | Flood | 0.05–0.3 |
| Inconel 718 | CBN | 10–25 | 0.01–0.04 mm/rev | High-pressure | 0.1–0.4 |
| Tungsten | PCD | 5–15 | 0.005–0.02 mm/rev | Oil-based | 0.2–0.6 |
| Tantalum | Diamond | 10–20 | 0.005–0.02 mm/rev | Flood | 0.1–0.5 |
Material Expertise: Titanium, Nickel, Tungsten, Tantalum, and more
Tight Tolerance Bores: ±0.002 mm, high L/D ratio capabilities
Prototype & Small-Batch Production: 1–100 pieces
Global Applications: Aerospace, medical, industrial, automotive, electronics
Turnkey Solutions: Boring, reaming, polishing, assembly
All CNC-bored components are ready-to-use, small-batch, and high-precision. Request a quote at https://www.eadetech.com.
Whatsapp: +8618998453346
Phone: +8618998453346
Tel: +8618998453346
Email: [email protected]
Addr: Room 302, Building D, COFCO Gonghua Project, Zone 20, Honglang Community, Xin'an Street, Bao'an District, Shenzhen City.