PCD Reamer RFQ Checklist: Data That Speeds Quotation

Tuesday’s RFQ still says “quote a PCD reamer” with no Si%, allowance, or measured runout—then the factory cannot tell whether the bore needs a finishing edge, a guided body, or a different process route until those fields arrive.

This page is the field checklist for a custom PCD reamer engineering RFQ: what each input means for geometry and a shared cost-per-accepted-hole baseline, what stalls when it is blank, and what to upload next. It is not a buying / quality inspection checklist (High-Quality PCD Reamer Buying Checklist), not a High-Si selection essay (When to specify a PCD reamer for High-Si Al), and not an allowance calculator (Allowance & Pre-Hole Size). Sister intake for create tools: Solid Carbide Drill RFQ Checklist. Route fork Soft: Hole Process Route.

Drawing, GD&T, and the finished bore job

Send the controlled drawing (or model) with the bore called out—not only a nominal diameter in an email.

Fields to state

Field	Why it changes the quote
Finished Ø + tolerance	Edge count, guide concept, whether straight / multi-step / combination is even in scope
Roundness / cylindricity / surface finish	Finish strategy and inspection language
Datums, steps, chamfers, interruptions	Body length, pilot/guide, coolant exits
Hole type: blind / through / cross / interrupted	Chip exit, bottom clearance, cross-bore interruption risk
Which bores are in this RFQ + revision	Prevents quoting the wrong feature set

Blind, through, and cross holes are RFQ fields, not optional notes—they change chip path and guidance. Depth Soft only: PCD reamer blind / through / cross holes. Intake fields match the public Custom Cutting Tool RFQ and PCD reamer product page.

If missing: Quotes stay “concept TBD,” or the supplier guesses a generic finish reamer that ignores steps, blind bottoms, and interruptions.

Minimum pack: PDF / DWG / STEP + revision + which bores are in this RFQ.

Material grade—and Si% when the part is aluminum

Name the alloy / condition. For cast or high-silicon aluminum, state silicon content when you know it (or the casting grade that implies it).

PCD finishing is evaluated for qualified non-ferrous and abrasive routes; ferrous work usually points elsewhere. Silicon and abrasive constituents change wear and edge-prep discussion—they do not license a fixed life number or a “save X%” claim.

If missing: The quote cannot choose PCD vs carbide finishing honestly, and any cost-per-accepted-hole talk stays guesswork.

Short decision: if the print is aluminum and Si% is unknown, say so—expect a conditional PCD recommendation until Si% or grade arrives. When-to-specify Soft (do not restate here): When to specify a PCD reamer for High-Si Al. Family fork Soft: PCD reamer vs carbide reamer—this checklist only asks for the fields that unlock that decision.

Pre-hole method, diameter band, and reaming allowance

Document how the hole is created, the incoming diameter range, and the intended finishing stock.

Reaming finishes a controlled incoming hole. Too little stock risks rubbing; too much overloads the edge and disturbs chip flow. There is no universal allowance to paste into every RFQ.

Fields to state

• Create method (drill / bore / expand / cast core / other)
• Incoming Ø band (min–max as measured or print call)
• Intended reaming allowance / finishing stock
• Pre-hole quality notes if known (lobing, smear, exit burr)

If missing: The factory cannot judge guidance or flute, or whether scrap risk sits in create vs finish—your cost baseline has no numbers to share.

Size and quality Soft (short pointers only): Allowance & Pre-Hole Size · Pre-Hole Quality. Aluminum create→finish handoff Soft: carbide drill → PCD reamer process.

Machine, holder, measured runout, stickout, coolant

List the production setup—not the catalog ideal.

Field	What to write
Machine / spindle interface	Make/model or taper (BT/HSK/etc.) if known
Holder type	Collet, hydraulic, shrink, milling chuck, etc.
Stickout / overhang	Gauge length or free length from spindle face
Measured runout	Under the production holder if possible—not “catalog TIR”
Coolant route	Internal / external / MQL; filtration if known
Through-coolant note	If the create drill needs through-coolant, say so on the drill RFQ—reamer coolant still needs to reach the finish zone

Runout and stickout load edges unequally; coolant must reach the cutting zone and move chips. Catalog geometry is not proof of installed accuracy.

If missing: Quotes assume ideal setup; trials then fail for fixture/holder reasons blamed on the reamer.

Conditional path: if Si%, allowance, and runout are already in hand, you can start an engineering screen without a perfect pack—still upload the drawing.

Volume, acceptance, failure mode, and reconditioning intent

Add the fields that turn a geometry quote into a shared cost-per-accepted-hole conversation—without promising annual savings.

Fields to state

• Annual or batch volume; holes per part
• Gauge method and acceptance limits (Ø, form, Ra, position if claimed)
• Current scrap / drift / burr / taper failure mode
• Sample / first-article / PPAP-style checks you actually run (no fake guarantees)
• Regrind / retip intent and revision-controlled repeat need

These fields feed cost per accepted hole (acquisition, changes, scrap, reconditioning)—not a promised annual saving. They also decide spare-tool and sample-validation scope.

Cost framing Soft (no % copy): PCD reamer Cost per Accepted Hole. Manufacturing / recond Soft: How PCD reamers are made · PCD reamer regrind / reconditioning. Structure trials with Sample Validation Process. Distributor-facing programs: distributor cutting tool program. Broader route Soft: Precision Holemaking Selection Guide.

Incomplete RFQ — what stalls the quote

Use this as a stall map before you hit send. Missing fields do not always mean “no quote”—they often mean conditional or re-ask.

Missing field	Typical stall
Controlled drawing / GD&T / which bore	Concept TBD; generic finish guess
Blind / through / cross not marked	Wrong chip exit / bottom / interruption assumption
Material + Si% (Al)	Cannot choose PCD vs carbide finishing honestly
Pre-hole method / allowance band	Cannot judge guidance, flute, or create-vs-finish scrap risk
Measured runout / holder / stickout	Ideal-setup quote; trial fails on fixture
Acceptance + failure mode	Cost baseline has no shared scrap story; sample scope vague
Volume / recond intent	Spare-tool and retip path undefined

Three fields stall most aluminum finish RFQs: Si%, allowance, measured runout. Fill those first when you can; still send the drawing if the rest is incomplete.

Copy-paste field checklist

Copy into your RFQ email or upload notes. Leave blank only when truly unknown—and mark “unknown” so the quote can stay conditional.

Drawing / GD&T / hole type

• [ ] PDF / DWG / STEP + revision
• [ ] Finished Ø + tolerance; form / Ra / datums as on print
• [ ] Steps / chamfers / interruptions
• [ ] Hole type: blind / through / cross (and which bores in this RFQ)

Material

• [ ] Alloy / condition
• [ ] Si% or casting grade (aluminum) — or “Si% unknown”

Pre-hole / allowance

• [ ] Create method
• [ ] Incoming Ø band
• [ ] Intended finishing stock / allowance
• [ ] Pre-hole quality notes (if measured)

Machine / holder / coolant

• [ ] Machine / spindle interface
• [ ] Holder type
• [ ] Stickout
• [ ] Measured runout (or “not measured—conditional OK”)
• [ ] Coolant route / filtration

Volume / acceptance / recond

• [ ] Volume / holes per part
• [ ] Gauge method + acceptance limits
• [ ] Current failure mode
• [ ] Sample / first-article language (what you will check)
• [ ] Regrind / retip / revision-controlled repeat intent

Frequently Asked Questions

What is the minimum field set for a first PCD reamer RFQ?

Drawing with bore GD&T and hole type (blind/through/cross), material (Si% when aluminum), pre-hole method and allowance band, machine–holder–runout–coolant, acceptance method, volume, and current failure mode if known. That is enough to start an engineering screen; use the copy-paste checklist above, then upload via the Custom Cutting Tool RFQ.

Why do you ask Si% on aluminum?

Silicon content changes abrasive wear discussion in aluminum castings and whether PCD finishing is even the right family. It is not a license to claim a fixed life multiplier. When-to-specify Soft: When to specify a PCD reamer for High-Si Al.

How is this different from the buying checklist?

This page asks what to send so a quote can move—fields for geometry, setup, and cost-per-accepted-hole framing. The High-Quality PCD Reamer Buying Checklist is a purchase / quality inspection gate after you already know you want a PCD finish tool. Do not merge the two RFQs.

Can I RFQ without measured runout?

Yes—expect a conditional quote that assumes an ideal holder until measured runout (or a holder photo + stickout) arrives. Trials that skip runout often fail for fixture reasons blamed on the reamer. Mark “runout not measured” so the stall is visible.

What acceptance language should I put for sample / PPAP-style checks?

State the gauges and limits you will actually use (Ø, form, Ra, position if claimed), sample size or first-article scope, and what fails the lot—without asking for a guaranteed tool life. Structure the trial Soft: Sample Validation Process. Cost framing Soft: Cost per Accepted Hole.

Next step

Fill every required field you can, mark Si% unknown when needed, then upload the drawing. Stay through first-article when Ø or finish talks back—with Sample Validation Process and How PCD reamers are made in the loop.

• Soft context: Sample Validation Process · Allowance & Pre-Hole Size · Pre-Hole Quality · High-Si when-to-specify · Cost per Accepted Hole · How PCD reamers are made · Buying Checklist · Solid Carbide Drill RFQ Checklist · Hole Process Route
• Product: Custom PCD Reamer
• Hard RFQ: Custom Cutting Tool RFQ