Precision Standards

Linear Tolerance — ISO 2768-f

• — Dimensions 6–30mm: ±0.10mm
• — Dimensions 30–120mm: ±0.15mm
• — Dimensions 120–400mm: ±0.20mm
• — Dimensions 400–1000mm: ±0.30mm

Angular Tolerance — ±0.01°

• — Tight angular control for chamfers
• — Precision tapers & cones
• — Datum-aligned angle features
• — CMM verification available via angular measurement at our group's shared metrology center on request

Surface Roughness — Ra 0.4

• — Standard as-machined: Ra 1.6–3.2
• — Fine finish: Ra 0.8–1.6
• — Precision finish: Ra 0.4–0.8
• — Mirror finish: Ra 0.1–0.4 (grinding)

Form Tolerance — GD&T

• — Flatness, parallelism, perpendicularity
• — True position (⌀0.02mm)
• — Concentricity & runout
• — Profile of surface & edge

CMM verification (via our group's shared metrology center, on request)

First-article and sampling inspections can be CMM-verified via our group's shared metrology center on request, per AQL 2.5 sampling standards.

Surface Measurement

Roughness verified by profilometer. We can provide Ra readings for critical surfaces on request.

Dimensional Reports

Dimensional inspection reports available on request — first-article (FAI) and key-characteristic reports, documented per your requirements.

Tight Tolerance Capability

With 5-axis simultaneous machining and precision grinding, we hold ±0.005mm on critical features.