Precision focus
Hole position, flatness, runout, perpendicularity, concentricity and fit
Buyer Decision Snapshot
Use this page when you already have drawings or a part concept and need to decide whether XHR is a fit for the process, material and inspection requirements.
What Buyers Usually Need
Where precision matters
Bearing seats, sealing faces, datum references, alignment features and fitted holes are the features that usually control part performance.
Why tolerance changes price
The tighter the required feature, the more careful the setup, machining and inspection usually become.
What buyers should mark
Critical dimensions should be called out separately from general geometry so the supplier knows where to spend effort.
How to reduce risk
Share application notes, mating parts and acceptable substitute options before the quote is finalized.
What to Send in the RFQ
- Current drawing revision and 3D model when available.
- Material grade, substitute options and any certificate requirement.
- Quantity, repeat quantity and target delivery date.
- Critical dimensions, threads, datums and surface finish notes.
- Inspection report, packing and shipping destination requirements.
Example Images
Common Buyer Mistakes
Putting tight tolerance everywhere
Most features do not need the same control level, and that adds cost without improving function.
Not defining the measuring method
If a feature is critical, the inspection method should match the geometry and the tolerance band.
Leaving out mating context
The supplier needs to know what the part fits against to understand the real precision requirement.
How XHR Reviews This Order
Dimensional strategy
XHR checks which dimensions are truly functional and which can stay at general tolerance.
Measurement plan
The team can discuss gauges, CMM checks and first article expectations before machining starts.
Repeatability
Stable drawing revision and process notes matter more when the part is made again later.
FAQ
What counts as a precision CNC part?
Any part where fit, motion, alignment, sealing or repeatability depends on controlled dimensions.
Can XHR handle tight tolerance features?
Yes, after material, geometry and inspection method are reviewed against the drawing.
Should I send the mating part or assembly note?
Yes, that helps identify the surfaces and dimensions that actually matter.
Related Pages
Request a Quote
Send the drawing, quantity and finish requirements. XHR will review the part before quoting.