A 6-MINUTE STORY · ILLUSTRATION
The untoleranced dimension: why engineers reject claims without numbers
Engineers read your website the way they read a drawing. Any claim without a number is an untoleranced dimension, and it gets rejected.
Supplier 1 is an invented machine shop with a common capabilities page: a handshake photo and three adjectives. Pick the work you want, then scroll. We'll read the page the way a design engineer at a defense OEM reads a drawing.
SCROLL TO READ THE DRAWING ↓
AS SAID · 10:40 PM
One drawing, three supplier tabs.
10:40 PM. A design engineer at a defense OEM has a drawing open in one window and three supplier websites in the others. The part is a hydraulic pump housing for a turret drive, with three bores that have to hold. Supplier 1's capabilities page shows a handshake photo and the words “precision”, “tight tolerances” and “industry-leading quality”.
Every dimension on her drawing has a value and a tolerance. She's about to read the page the same way.
ILLUSTRATION · INVENTED ENGINEER, SHOPS AND SPECS · ALDERPOINT-MACHINE.TEST
NEXT: THE READ ↓THE READ
She reads it like a drawing.
She reads the page the way she reads a drawing. Each adjective is a dimension with no value. Tight compared to what? Precision on which machines, in which material? She can't check any of it, so she can't approve any of it.
RED: A DIMENSION WITH NO VALUE · STAMPED NO TOLERANCE: REJECT · ILLUSTRATION
NEXT: THE COST ↓THE COST
The drawing goes to the page with numbers.
Supplier 2's page states its bore tolerances, its machine envelopes and its first-article inspection method, with a drawing upload on the same page. She uploads there and closes the other tabs. Supplier 1 never learns it was in the running. No call, no lost-quote note, nothing.
ONE DRAWING SENT · SUPPLIER 1 HEARS NOTHING · ILLUSTRATION
INVENTED SHOPS ON .TEST DOMAINS
NEXT: AS BUILT ↓AS BUILT · ON THE FLOOR
The bores hold every day.
On Supplier 1's floor, the same bores get held every day. The horizontal mill has the travel for the housing. First-article inspection runs on every new part number, with a report. The quality manager could recite all of it. Nobody wrote it on the website.
True on the floor isn't the same as said on the page.
HMC: HORIZONTAL MACHINING CENTER · FAI: FIRST-ARTICLE INSPECTION · ILLUSTRATION
NEXT: THE CHANGE ↓THE CHANGE · BLUEPRINT + WEBSITES
Put the number next to the claim.
The paid Buyers Blueprint captures the numbers your team already knows, each with its source. The Websites build puts each one on the page an engineer lands on, next to the claim it proves, with a drawing upload beside it.
BLUEPRINT · PAID ONBOARDING · FIRST STEP OF EVERY PROGRAM
NOTHING GOES PUBLIC WITHOUT YOUR YES
NEXT: RELEASED ↓RELEASED · ILLUSTRATION
Same page, same late night.
Every callout now carries a value: the bore tolerance, the travel on each machine class, the first-article method, the materials run every week. The title block is initialled CHECKED. Whether she sends the drawing is still her call. Now she has what she needs to make it.
THE PAGE STATES 3 OF 3 · A DRAWING UPLOAD BESIDE THEM · ILLUSTRATION, NOT A PROMISE
NEXT: YOUR TURN ↓THREE CLAIMS SHE CHECKS: ENVELOPE, TOLERANCE, INSPECTION · ILLUSTRATION
| Claim | On the page, before | Her read | As built | After release |
|---|---|---|---|---|
| Precision | “Precision”, with no value | No tolerance: reject | 4-axis HMC, 40 × 32 × 36 in. of travel; runs 7075 and 6061 aluminum, 17-4 PH stainless and 4140 steel every week | Stated on the horizontal milling page |
| Tight tolerances | “Tight tolerances”, with no value | No tolerance: reject | Bores held to ±.0003 in., from Ø.250 to 6.000 in., checked on the CMM | Stated on the boring page |
| Industry-leading quality | “Industry-leading quality”, with no value | No tolerance: reject | First-article inspection on every new part number, with AS9102 forms and a CMM report | Stated on the first-article page |
| Drawing upload | A contact form only | Nowhere to send a drawing | Quotes from drawings every day | A drawing upload on every process page |
Tolerance every claim.
RELEASED · CHECKED · DRAWN FOR DEFENSE WORK · ILLUSTRATION
103 · THE LESSON
Any claim without a number is an untoleranced dimension.
Engineers can't check it, so they can't approve it. The drawing goes to the supplier that gave numbers, and nobody tells you.
Put the number next to the claim: bore tolerances, machine envelopes, materials, inspection method, lead time.
| CLAIM | AS SAID | AS BUILT | WHERE IT'S SAID NOW |
|---|---|---|---|
| PRECISION | NO VALUE | 4-AXIS HMC · 40×32×36 IN | /capabilities/horizontal-milling · EXAMPLE PAGE |
| TIGHT TOLERANCES | NO VALUE | BORES ±.0003 IN | /capabilities/boring · EXAMPLE PAGE |
| INDUSTRY-LEADING QUALITY | NO VALUE | FAI ON EVERY NEW P/N · AS9102 | /quality/first-article · EXAMPLE PAGE |
| DRAWING UPLOAD | CONTACT FORM ONLY | QUOTES FROM DRAWINGS DAILY | every process page · EXAMPLE PAGES |
EXAMPLE PAGES ON AN INVENTED SITE · EVERY SPEC IS INVENTED FOR ILLUSTRATION
General notes
- The companies, people, websites and figures in this story are invented to show a pattern we see often.
- HMC is a horizontal machining center. CMM is a coordinate measuring machine.
- FAI is first-article inspection. AS9102 is the aerospace standard for first-article reports.
BEHIND THE STORY · Marketing to engineers · The Five-Minute Screen · What your website teaches IKE, our Industrial Knowledge Engine · Methodology and sources
YOUR TURN · THREE YES OR NO CHECKS
Check your own
Three yes-or-no checks you can run on your own site on Monday morning.
Does every capability claim carry a number?
Tolerance, size, weight, volume or turnaround. If it says “tight” or “large”, it fails.
Can an engineer find your machine envelopes?
Travel, table size and spindle for each machine class, written on the process page. A PDF doesn't count.
Can they send a drawing from the page they're on?
A drawing-upload RFQ on every process page, as well as on Contact.
ANSWER ALL THREE · YOUR ANSWERS STAY ON THIS PAGE
If she can't check it, she can't approve it.