SHEET 1/7

For Precision Machining Shops

We read your machining drawings.
You quote faster.

Upload a drawing. Get every bore, fit class, GD&T callout, surface finish, and material spec extracted in minutes. First-piece inspection report, automated.

First drawing free · No credit card

MAVLON SHEET 1 / 7 REV 1.0 2026
The Drawing

What your estimator sees every morning

280.0 ±0.05 Ø50 H7 Ø60 ⊕ Ø.05 M | A | B ⌖ 0.02 A C Ra 0.4 on bore CM-SHFT-2024-007 · AMS 4117 · ASME Y14.5 · 5-axis machined
Stepped shaft · 47 dimensions · 8 GD&T frames · H7 / g6 fits · datum chain critical
The Extraction - minutes

What Mavlon sees instantly

Material
AMS 4117 (Al 7075-T6)  ·  Stock Ø75mm  ·  Mass 2.18 kg
Overall
280.0 ±0.05 × Ø60 × Ø50 mm
Bores
Ø50.000 H7  ·  Ø25.000 H7 (clearance fits)
GD&T
⊕ Ø.05 M | A | B  ·  ⌖ 0.02 A C  ·  ⏥ 0.01 A
Threads
4 × M8×1.25 - 6H  ·  full depth 18 mm
Surface
Ra 0.4 on bores  ·  Ra 1.6 elsewhere  ·  Critical
Datums
A = primary mounting face  ·  B = bore axis  ·  C = keyway
Standards
ASME Y14.5-2018  ·  ISO 286 fits  ·  ISO 2768-mK
Notes
T6 condition verified post-machining  ·  Anodize Type II

A missed fit class isn't a tolerance issue.
It's a margin killer.

Every fit class your estimator misses is a precision grinding pass your shop floor will be forced to add. In precision machining, the cost lives in the tolerance band - and the wrong band silently kills the margin.

1
MISSED: Ø50 H7 Fit
Silent Margin Erosion
H7 clearance fit missed in quoting. Quoted as standard machining (±0.05). Precision grinding required to hit +0.025/-0. Extra setup, extra time, margin gone.
↳ -28% margin on every unit
2
MISSED: Datum Chain A | B | C
First-Piece Rejection
GD&T datum reference frame interpreted wrong. CMM setup uses wrong primary datum. First piece measures position tolerance against wrong reference. Rejected.
↳ Re-machine + 3 days lost
3
MISSED: Ra 0.4 Surface Finish
Customer Rejection
Surface finish callout missed on critical bore. Standard turning produces Ra 1.6. Customer's mating shaft fails to seat. Entire batch returned.
↳ Full re-run + customer hold
RISK ANALYSIS SHEET 3/7 CLASSIFICATION: CRITICAL

The same machining drawing.
Two realities.

Your Shop Today With Mavlon
First-piece prep time 1–3 hours 5 min review
Fit class expansion (H7, g6) Manual ISO 286 table lookup Auto-expanded to limits
GD&T datum chain 30 min interpretation per part Instant - graph-resolved
Surface finish per feature Manual matching to features Auto-mapped per surface
Material spec verification AMS / EN / MIL lookup Auto-checked against spec
Senior QE dependency Required on every drawing Junior can review
Quote turnaround on new RFQ 1–3 days Same-day response
PROCESS COMPARISON SHEET 4/7 DATA: PRODUCTION AVERAGES

What you actually get.

Upload one drawing. Receive three verified deliverables. Your quality engineer reviews in 30 minutes instead of building from scratch in 8 hours.

Deliverable 01
First-Piece Inspection Report
Pre-populated inspection form. Every bore, fit class, GD&T frame, surface finish, and threaded feature - with tolerances expanded and inspection methods filled in.
  • ISO 286 fit classes expanded (H7, g6, P7)
  • GD&T datum chain resolved
  • Surface finish per feature
  • Export-ready .xlsx
Deliverable 02
Quoting Cost Sheet
Drawing specs injected into your cost-calc Excel template. Stock size, material, feature counts, tolerance bands - ready for your shop's pricing logic.
  • Stock size + mass calculated
  • Operations count (turns, mills, threads)
  • Tolerance band flags (precision grind needed?)
  • Maps to your Excel template
Deliverable 03
Manufacturing Flags
Risks surfaced before you commit to a quote. Tight tolerances, hard materials, deep bores, thin walls, datum accessibility - flagged with severity.
  • Tolerance severity flags
  • Material machinability score
  • CMM setup complexity
  • Customer-specific clarifications

Intelligence that
compounds.

Every drawing becomes permanent, searchable institutional memory. The advantage builds exponentially.

PHASE 01
100 drawings
Pattern Recognition
System recognizes part families, common tolerancing patterns, and recurring material specs across your projects.
PHASE 02
1,000 drawings
Institutional Memory
Historical pricing, feasibility data, and supplier patterns surface automatically on every new RFQ.
PHASE 03
5,000+ drawings
Competitive Moat
No competitor can shortcut, buy, or hire this intelligence layer. It is yours alone.

Your quality engineer processes 1 complex FAI per day. Your estimator reads 3 drawings before lunch. With Mavlon, they do 3x the work without working harder.

Montanstahl Group, Switzerland

How a Swiss precision metals group eliminated the RFQ feasibility bottleneck across 3 production sites

Montanstahl's estimating team across Switzerland, Germany, and Italy spent thousands of hours per year answering the same question on every machining RFQ: "Can we make this?"

Mavlon gave them the answer in seconds, embedded directly in their existing workflow, without replacing expert judgment where it matters.

>85%
Accuracy
Seconds
vs. Hours
1000s
Hours Saved
7-fig
Annual Upside (est)
Swiss Precision Metals Group · Aerospace, Motorsport, Energy · Since 1983

"What previously required emails, phone calls and digging through old RFQs is now answered in seconds for standard and semi-standard cases."

Read the full case study
"

Half our estimator's day was looking up fit classes and interpreting datum chains. We needed something that could read the GD&T and tell us in seconds whether the part needs grinding or not.

Production Manager - Swiss Precision Machining Shop

Built for Precision Machining
ASME Y14.5
ISO 286 Fits
ISO 1101 GD&T
ISO 2768mk
First-Piece Inspection
On-Premise Available

Exports to Clipper · SAP · Epicor · JobBOSS · Excel - or your ERP.

One machining drawing.
Sixty seconds.
See it yourself.

Upload a precision machining drawing. Get every bore, fit class, GD&T callout, surface finish, and material spec extracted in minutes. First-piece inspection report ready. First drawing is free.

No signup. No slides. Your drawing, fully analyzed in seconds.

The first precision machining shop in your region to automate GD&T and fit-class extraction quotes faster and protects margin. The rest spend the next decade losing precision-grinding work to ambiguous fits.
MAVLON SHEET 7/7 END OF PACKAGE 2026