3–5 axis precision machining

CNC milling for complex, drawing-critical parts.

METIC coordinates international projects while Hongye provides the manufacturing base for custom CNC milled components—from prototype quantities to repeat OEM production.

Send Your Drawings →Discuss Your Part

3–5 AxisMachining capability

±0.01 mm*High-precision milling

DFM ReviewBefore production

Global SupportQuotation to export

Custom CNC milled components

CNC milling uses rotating cutting tools to produce pockets, slots, flat faces, mounting holes and three-dimensional surfaces. We review every enquiry against the material, geometry, quantity, tolerances and inspection requirements shown on the drawing.

Three-axis milling is suitable for many prismatic components. Four-axis and five-axis strategies may reduce setups for multi-face features and complex geometries when the part and tolerance plan support that approach.

Design details that affect the process

Deep cavities, thin walls, small internal radii and limited tool access can affect cycle time, stability and achievable tolerance. Mark functional dimensions, mating surfaces and datum requirements clearly. If a surface is cosmetic, identify it separately from functional machined surfaces.

Materials and finishing

Projects may use aluminum, stainless steel, carbon steel, engineering plastics and other specified materials. Final feasibility depends on the exact grade, geometry and quantity. Surface treatments are coordinated to the drawing and must identify masked areas and dimensions controlled after finishing.

Two rows of CNC machining centers on the Hongye production floor in Xiamen — Hongye CNC machining workshop · Xiamen, China

Real factory evidence

Process choice starts with the part.

This photograph shows the production floor supporting METIC enquiries. It is evidence of the manufacturing environment, not proof that every photographed machine is a 5-axis model or that any single tolerance applies to every part.

For multi-face features, we compare 3-axis setups with indexed or simultaneous multi-axis options against tool access, datum relationships, surface requirements and inspection. The appropriate route is confirmed only after reviewing the customer drawing, material and quantity.

Compare 3-axis and 5-axis process choices →

Read the CNC supplier-evaluation checklist →

Reference capability

Machining tolerance guide

Process	Standard reference	Special request	Important note
CNC milling	±0.05 mm	±0.01 mm	Confirmed by geometry and feature
5-axis machining	±0.02 mm	±0.01 mm	Datum and setup strategy reviewed
Surface grinding	±0.01 mm	±0.002 mm	Subject to size and inspection method

*These figures are capability references, not blanket guarantees. Final tolerances are confirmed for the material, geometry, process and measurement method on each project.

Questions buyers ask

When should a part use 5-axis milling?

Five-axis machining can be useful when a part has features on multiple faces, complex contours or tool-access limitations. The engineering review determines whether it improves accuracy or reduces setups for the specific design.

How should critical tolerances be identified?

Mark critical dimensions, fits, datums, position requirements and inspection expectations on the 2D drawing. A 3D model alone may not communicate all functional requirements.

Can METIC support prototypes and repeat orders?

Yes. Include the prototype quantity and expected repeat-production volume so the process and quotation can be planned around both stages.

See photographed CNC milled parts and factory production examples →