Custom metal components
Source CNC machined components and custom metal parts from India through BGS and its manufacturing partners.
Send your drawing, material, quantity and inspection requirements. BGS coordinates source review, quotations and samples for CNC turning, CNC milling, fabrication and casting.
Have a model or sample instead? Share what you have and we’ll clarify the next step.
Include first-batch and expected repeat quantities in the drawing brief so manufacturers can review the process and tooling assumptions.
Choose the route around the part
Part geometry, material, quantity, tooling and critical features influence the manufacturing route. BGS helps coordinate a like-for-like source review.
Drawing-led turned and milled parts
Shafts, bushes, housings, blocks and mounting components with defined features, threads and mating requirements.
Include the material grade, critical dimensions, datum scheme, threads and surface requirements.
Cut, bent and joined components
Brackets, panels, enclosures and welded assemblies evaluated around sheet thickness, bend geometry, joining and finish.
Include thickness, bend requirements, flat pattern if available, weld details, hardware and cosmetic surfaces.
Process and tooling reviewed together
Selected cast or formed parts where geometry, material and volume support the proposed route. Secondary machining and finishing are assessed with the primary process.
Include the intended process if fixed, model, material, tooling status, volume and features requiring machining.
Identify material grade, datums, fits, threads and critical tolerances.
Ask for the proposed machining and inspection basis.
Define sheet or section, bends, joining, hardware and finish.
Include assembly and cosmetic acceptance.
Review geometry, tooling, finish machining and sample requirements.
Compare tooling and repeat-part costs separately.
Images illustrate component families. Process availability and feasibility are confirmed for the selected source; a part may combine more than one route.
Evidence for your source review
Match the evidence to the proposed manufacturer, product and market. Include your requirements in the RFQ so the relevant records can be requested and checked during source evaluation.
Identify the certificate holder and actual manufacturing facility. Review the standard, certified scope, issuing body and validity for the proposed source.
Applies to the named manufacturer or facility.
Where applicable, identify the covered product/model, configuration, market and approval or file reference. Confirm that the proposed item falls within the documented scope.
Applies to the identified product and approval scope.
Specify material certificates, dimensional reports, treatment/coating records and traceability required for the actual part.
Specify the grade, not just the metal
Share the material standard, grade and condition, together with any approved equivalents. Required properties and service conditions guide the review.
Grade, temper or casting alloy; appearance and surface-treatment requirements.
Grade and condition, corrosion exposure, strength or heat-treatment requirements.
Grade, conductivity or mechanical needs, machining and surface requirements.
Provide the exact specification for feasibility and documentation review.
Specify as-machined or treated surfaces, roughness where functional, coating or plating requirements, colour and cosmetic acceptance. Identify masking, protected threads and whether dimensions apply before or after treatment.
Anodising, plating, painting, powder coating or heat treatment are assessed where applicable—not assumed available for every grade or geometry.
Identify where roughness or treatment affects sealing, sliding, fit or electrical contact. Keep cosmetic requirements distinct.
Define masking, thread protection and surfaces that must remain untreated. Agree any post-treatment operations.
Clarify whether dimensions are checked before or after coating, and what colour or appearance reference will be used.
Make the quotation basis clear
Consistent revisions and explicit critical requirements reduce assumptions when manufacturers review your enquiry.
Before requesting quotations, review the CNC drawing and inspection checklist. For prototypes or smaller quantities, see our low-volume custom-order guide.
Download the Metal Parts RFQ Checklist
Highlight mating features, datums, critical tolerances and inspection needs. Avoid assuming that a general process capability applies to every feature.
Use the same drawing revision, grade, finish, quantity and inspection scope for each offer. Keep tooling, samples, packing and freight assumptions visible.
Acceptance before production
Inspection scope follows the part and the order. Define the methods, limits, unit or sampling coverage and records needed before production release.
Required certificates and traceability, with verification or additional testing where agreed.
Critical features, datum references and inspection methods, including gauges or CMM reporting where specified and available.
Surface condition, coating or treatment evidence, deburring, cosmetic limits and protected areas.
First samples and required records before approval; proposed material, process or source changes submitted for agreement.
Every unit on a BGS purchase order is inspected against agreed criteria. For manufacturer-direct orders, BGS inspection scope and service terms are agreed separately. Required supplier certifications must be verified for the selected source.
From enquiry to agreed supply
Drawing, material, application and quantity establish the starting brief.
Manufacturing fit, tooling, secondary operations and commercial assumptions are clarified.
Agree sample needs, records and acceptance before production release.
Follow the agreed scope through inspection, packing and dispatch planning.
Documented sourcing-stage example
An aluminium enclosure enquiry progressed through manufacturer engagement and confidentiality documentation. The documented milestone is supplier evaluation; production delivery is not claimed.
Before you send the drawing
BGS is a supplier and sourcing partner. CNC machining and other manufacturing processes are performed by selected Indian manufacturing partners. The quotation identifies the agreed supply scope, approved specification, sample requirements and inspection responsibilities.
Use the same drawing revision, material grade and condition, tolerances, surface finish, inspection records and order quantity. Compare tooling or setup charges, sample approval, lead time, packing and delivery terms separately. Ask each proposed source to identify exclusions and assumptions before comparing unit prices.
Yes. Share the reference sample, model or photographs and the information available. A model alone may not define tolerances, material condition, finish or inspection requirements. These need clarification before quotation and production approval.
BGS coordinates manufacturer review around the part geometry, grade, quantity, tooling and acceptance requirements. If alternatives are proposed, their technical and commercial assumptions are made explicit for your approval.
There is no single tolerance covering every process, feature or material. Send the actual drawing and identify functional dimensions and datums. Feasibility, measurement methods and any limits must be confirmed for the selected manufacturer and proposed route.
Yes. Specify the exact records needed, such as material certificates, dimensional reports, coating or treatment records and traceability. Availability, scope, cost and acceptance criteria are agreed with the quotation.
Tooling costs, ownership, maintenance, sample approval and production release are agreed for the order. Repeat orders reconfirm the approved revision, material, source, availability, pricing and timing.
Turn a drawing into a clear enquiry
Share the drawing and order context. We’ll review the available information, clarify missing details and establish the next step for source evaluation.
Confidential drawings can be discussed under an agreed NDA where required.
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