Tolerance support
Up to +/-0.005 mm on critical features after review
XHR Precision Machining produces custom CNC machined parts from customer drawings for automation equipment, robotics, medical devices, industrial machines, fixtures, housings, shafts, plates, and other non-standard components.
Quick technical answer
XHR quotes custom CNC parts from a complete drawing package rather than from a keyword alone. The useful minimum is a 3D model, dimensioned 2D drawing, material, quantities, critical tolerances, finish, inspection requirements and delivery destination.
| Requirement | Practical guidance |
|---|---|
| Best fit | Prototype and repeat-production parts made from customer drawings, especially components with defined functional or assembly requirements. |
| Tolerance focus | Identify only the dimensions that are critical to fit, alignment, sealing or motion, and define the related datums. |
| Inspection | Agree first-article checks, critical dimensions, report format and any material or finish documents before production. |
| RFQ input | 3D model, controlled 2D drawing, material grade, quantities, finish, critical features, delivery target and destination. |
Technical review: XHR Precision Machining
For a practical quotation, send your drawing, material, quantity, tolerance requirements, and surface finish. Our team will review manufacturability before quoting.
Up to +/-0.005 mm on critical features after review
Prototype samples, small batches, and repeat production
STEP, IGES, PDF, DWG, DXF, and sample-based discussion
Non-standard precision parts for equipment builders
3-axis, 4-axis, and 5-axis milling for complex brackets, housings, plates, fixtures, and custom structures.
Precision turning for shafts, pins, sleeves, bushings, threaded parts, connectors, and round components.
Support for tight surfaces, wire cutting, discharge machining, and hard-to-reach features.
Anodizing, plating, black oxide, polishing, sandblasting, brushing, and cosmetic finishing support.
Many CNC machining problems are created before machining starts: unclear tolerances, wrong material assumptions, finish thickness, missing inspection notes, or unclear delivery expectations.
XHR asks which dimensions control fit, sealing, alignment or motion so tight tolerance is applied where it matters.
NDA requirements, sensitive files and large CAD packages can be handled through a direct RFQ thread before detailed review.
Anodizing, plating, polishing, passivation and black oxide can change dimensions or appearance, so finish notes are reviewed early.
Inspection notes, packing requirements and revision control can be recorded for repeat batches and replacement parts.
2D drawing with tolerances and a 3D file when available.
Requested grade, substitute options, and hardness requirements.
Prototype quantity and expected repeat batch quantity.
Surface treatment, color, inspection, and packing requirements.
Selected workshop and part examples showing the type of custom CNC machining work XHR can review from drawings.






Clear RFQ information helps XHR review manufacturability, quote faster, and avoid tolerance or finish misunderstandings before production starts.
Send STEP, STP, X_T, IGS, DWG, DXF, or PDF drawings when available. A 3D model helps us understand geometry, while a 2D drawing confirms tolerances, threads, surface finish, and critical dimensions.
Tell us the required material grade, estimated order quantity, prototype needs, and whether repeat production is expected. These details affect machining process, fixture planning, and unit price.
Mark only the dimensions that truly require tight control. Surface treatment such as anodizing, polishing, passivation, plating, or black oxide should be noted early because it can affect final dimensions.
If your assembly has critical fits, locating holes, sealing surfaces, or datum features, identify them on the drawing. XHR can focus inspection on those features and prepare reports when requested.
Send these details through the RFQ page so XHR can review your part, confirm practical tolerances, and prepare a clearer quotation.
Explore related service pages to understand our material, process, and application coverage.
Use this section to match drawings, tolerance requirements and delivery targets before sending an RFQ.
Custom machined metal and plastic parts from drawings, including prototypes, low-volume orders and repeat production.
Share 2D drawings, 3D files, material grade, quantity, tolerance notes, surface finish and inspection requirements.
Confirm critical dimensions, functional surfaces, assembly interfaces and cosmetic surfaces before machining begins.
Setup time, programming complexity, material availability, fixture needs, surface treatment and inspection depth usually drive price and delivery.
Yes. We support prototype CNC machining from 1 piece, then help customers move into small-batch or repeat production after validation.
Most RFQs can be reviewed within 24 hours when drawings, material, quantity, and tolerance requirements are clear.
Yes. XHR works with overseas buyers and can arrange global shipment for custom CNC machined parts.
Use this page as the starting point when you need a drawing-based CNC machining supplier for prototype parts, small batches, or repeat production.
CNC milling, turning, drilling, tapping, grinding support, EDM support, and surface finishing.
Brackets, housings, plates, shafts, sleeves, fixtures, machine parts, and non-standard components.
STEP, STP, IGS, X_T, PDF, DWG, DXF, sample photos, and revision notes.
One-off prototype parts, trial batches, bridge production, and repeat low-volume orders.
Clear drawings and inspection notes help XHR quote accurately, plan machining steps, and protect critical features before shipment.
These guides help buyers prepare clearer drawings, cost expectations, tolerance notes and finish requirements before sending a quotation request.
Send drawings and requirements to XHR. We will review the machining process, material, tolerance, finishing, delivery, and packing needs.
Buyer Path
Use these related pages to compare process capability, materials, finishes and RFQ preparation before sending drawings for quotation.