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How to Send an RFQ to a Precision Component Manufacturer: The Complete Checklist
How to Send an RFQ to a Precision Component Manufacturer
A good RFQ gives the manufacturer everything needed to price your part correctly on the first reply: the drawing, material, annual volume, quality requirements and delivery terms. Missing any of these usually means a round of clarifying emails, a slower quote, or a quote that changes later.
This guide lists exactly what to include, why each item matters, and a template you can copy.
Why an Incomplete RFQ Slows Everything Down
A manufacturer cannot price a part from a photo or a one-line description. To quote, the engineering and costing team must work out:
- Can we make it to this tolerance with our process?
- How much material goes into each piece, and how much is scrap?
- What tooling is needed, and is it a one-time cost or shared across volume?
- Which operations follow the main process (heat treatment, coating, grinding)?
- What inspection and documents will the customer expect?
Every gap in your RFQ forces the supplier to guess or to stop and ask. Guessing leads to quotes that don’t match what you wanted. Asking adds days.
The RFQ Checklist
1. Drawing and part details
- 2D drawing with dimensions and tolerances. PDF is fine. Include the revision number.
- 3D model (STEP file), if available. Useful for forging and tooling design, but it does not replace the 2D drawing.
- Critical-to-quality dimensions marked. Tell the supplier which features matter most.
- Part name and part number. Use your own number so quotes and samples can be traced.
Why it matters: tolerance decides the process route. A feature held to a few microns may need grinding after turning, while a looser one may be achievable straight from forging.
2. Material
- Material grade and standard. For example, the grade code and the specification it comes from (IS, DIN, JIS, SAE).
- Whether substitutes are acceptable. If an equivalent grade is fine, say so.
- Material certificate requirement. Say whether you need a mill test certificate per lot.
Why it matters: material is usually the largest part of the cost, and the grade affects forming, machining and heat-treatment choices. Cold-forging-grade steels behave differently from general machining grades.
3. Volume and schedule
- Annual volume (estimate).
- Order or batch size and release frequency, such as monthly call-offs.
- Prototype or sample quantity, if you need samples first.
- Expected start of production (SOP).
Why it matters: volume decides whether forging with dedicated tooling makes sense or whether machining from a bar is more economical. A part needing thousands per month is priced very differently from a few hundred per year. For how that trade-off works, see cold forging vs hot forging.
4. Secondary operations and finish
- Heat treatment (case hardening, through hardening, tempering) and the target hardness and case depth
- Surface treatment such as phosphate coating, plating or oiling. For how phosphating works, read our guide to zinc vs manganese phosphating.
- Grinding or finishing requirements and surface roughness
- Marking or traceability requirements (batch code, laser marking)
Why it matters: each extra operation adds cost, lead time and a chance for variation. Listing them up front avoids a second quote later.
5. Quality and documents
- Inspection requirements. Dimensional report, hardness, tensile test, magnetic particle or other checks.
- Sampling plan and frequency, if your customer specifies one.
- PPAP level, if you are an automotive customer.
- Standards the supplier must hold. For automotive, this is usually IATF 16949. See what IATF 16949 means for suppliers.
Why it matters: quality documents take effort to produce. A supplier who knows the requirement can price it in rather than surprise you later.
6. Packaging and delivery
- Delivery location and whether you need domestic or export shipment
- Packaging requirement. Returnable trays, anti-rust paper, VCI bags or specific labels
- Delivery terms (ex-works, delivered, or export terms)
- Payment terms
7. Tooling and commercial terms
- Who owns the tooling? Some customers pay for tooling and own it. Others expect it to be amortised into the piece price.
- Target price or price range, if you have one. This helps the supplier tell you early whether the project is workable.
- Quote deadline.
RFQ Details at a Glance
| Item | Must Have | Nice to Have |
|---|---|---|
| Drawing | 2D with tolerances and revision | 3D STEP file |
| Material | Grade and standard | Acceptable substitutes |
| Volume | Annual quantity | Release schedule, SOP date |
| Processes | Heat treatment, coating, finishing | Surface roughness targets |
| Quality | Inspection and certificate needs | PPAP level, sampling plan |
| Delivery | Location, packing | Delivery terms, payment terms |
| Commercial | Quote deadline | Target price, tooling ownership |
Common RFQ Mistakes
- Sending only a photo or sample part. The supplier cannot read tolerances from it.
- Wrong or outdated drawing revision. The quote is for a part you no longer want.
- No volume given. The supplier either quotes at a high small-batch price or declines.
- Leaving out secondary operations. Heat treatment and coating appear on the drawing but not in the email.
- Over-tight tolerances everywhere. Tolerances tighter than function needs add cost without adding value. Mark only critical features as tight.
- Sending the RFQ to many suppliers with different information. The quotes then can’t be compared.
What Happens After You Send the RFQ
A typical sequence at a manufacturer:
- Review. Engineering checks the drawing and flags questions.
- Feasibility. The team decides the process route (forging, turning, grinding, or a combination) and whether the tolerances are achievable.
- Costing. Material, tooling, processing, inspection and packing are priced.
- Quote and clarifications. You receive a quote, often with a few questions or suggested changes that could reduce cost.
- Samples. Once you approve, the supplier makes samples for your validation.
A supplier who asks sensible questions at step 1 is usually a good sign. It means they are reading the drawing, not just quoting a number.
RFQ Template You Can Copy
Subject: RFQ – [Part name] – [Part number]
Hello,
Please quote for the following part.
Part name / number:
Drawing revision: (attached, PDF; STEP file if available)
Material and standard:
Annual volume:
Batch size / release schedule:
Sample quantity needed:
Expected start of production:
Heat treatment (hardness / case depth):
Surface treatment / finish:
Inspection and documents required: (e.g. dimensional report, material certificate, PPAP level)
Packaging:
Delivery location and terms:
Tooling: (customer-owned or included in price)
Quote needed by:
Thank you,
[Name, company, phone]
Send Your RFQ to ABC
Accurate Bearing Components has made precision automotive components in Doddaballapur, Bangalore, since 1992. We work with cold forging, CNC turning, heat treatment and phosphate coating, and our quality system is audited to IATF 16949 and ISO 9001.
Send your drawing and details to ops@accuratebearing.in, or call +91 95357 42213. You can also use the contact page. Not sure whether your part suits forging or machining? Tell us the volume and tolerance and we will advise on the route. For the full range of parts we make, see our cold forged components.
Table of Contents
FAQs
At minimum: a 2D drawing with tolerances and revision, material grade, annual volume, heat-treatment and surface requirements, quality documents needed, and delivery location and terms.
No. A clear 2D drawing is the key document. A 3D STEP file is helpful, especially for forged parts, but it does not replace the drawing.
Volume decides the best process and whether dedicated tooling is worth building. The same part can be priced very differently at 500 pieces a year and at 50,000.
It is difficult. If you only have a sample part, a manufacturer can often measure it and prepare a drawing, but the quote will take longer and tolerances will need your confirmation.
An RFI (request for information) asks about a supplier's capabilities. An RFQ asks for a price on a defined part. Many buyers send an RFI first to shortlist suppliers, then an RFQ to the shortlist.
Share realistic volumes, tighten tolerances only where function needs it, allow equivalent materials where possible, and be open to the supplier's process suggestions.
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