Read, write and inspect GD&T callouts with confidence
A 92-page handbook for reading, writing and inspecting GD&T callouts to ASME Y14.5-2018, with notes where ISO 1101 differs: feature control frames, datum reference frames, modifiers and bonus tolerance, every control family, worked drawings with CMM inspection, and a practice exam. PDF.
asme-y14-5-gdt-handbook.pdf
- Type
- Handbook
- Format
- Download size
- 92-page PDF
- Price
- $6.99
- License
- Personal licence
What the handbook covers
Feature control frames, decoded
The five compartments, tolerance zones and a 3-step reading method.
Datums, rules and modifiers
The 3-2-1 frame, Rule #1, Rule #2, RFS, MMC and LMC with bonus tolerance worked out.
Every control family
Form, orientation, location, profile and runout, with zones and callouts.
Worked drawings and inspection
Position checks, CMM and gage design, ASME against ISO, and a practice exam.
Using the handbook
- 01
Read the frame
Use the 3-step reading method to decode any callout on a drawing.
- 02
Choose the control
Follow the decision guide to pick the right symbol and datum scheme.
- 03
Review before release
Run the checklist and check the 15 common mistakes.
A 92-page handbook for reading, writing and inspecting GD&T callouts to ASME Y14.5-2018, with notes where ISO 1101 differs. It is printed on a 7 × 10 in page, with 24 vector figures and a summary box at the start and end of every part.
One idea, in a minute
Coordinate tolerancing gives a hole a square zone. A round pin does not care in which direction the hole is off, so the honest zone is a circle. For mm the circle through the square’s corners is mm and holds 57 % more usable area. The handbook builds from this idea to datums, material conditions, position, profile and inspection.
Choose your edition
The picker at the top of the page switches between three editions of the same material.
- Cheat Sheet: a free six-page reference with the 12 characteristics, the frame, datums, the two rules and the key formulas.
- Handbook: this book, every part in full, with worked examples, a drawing review checklist and a practice exam with solutions.
- Pro Handbook and Inspection Kit: the handbook plus two protected Excel workbooks, 36 printable flashcards and a guide to using them.
Who it is for
Design engineers who write GD&T callouts, drafters and checkers who review drawings, and quality and CMM engineers who inspect to them.
This is a reference handbook, not a substitute for the standards. Check requirements against the current ASME Y14.5 and ISO documents for your contract or customer.
Related
- ISO 286-2 Tolerances Wall Chart: what each size grade allows.
- Mechanical Design Data Book: fits, tolerance grades and the reference tables behind the calculations.
- DFMA Handbook: design for manufacturing and assembly.
Questions or a drawing you want reviewed? Get in touch.
The handbook at a glance
Get the handbook
About 92-page PDF.
asme-y14-5-gdt-handbook.pdf
Questions, answered
How do I get the PDF?
Buy it once at the price shown. Your download link appears right after checkout and is emailed to you. The link is valid for 24 hours and you can request a new one from your order page.
Which standard does it follow?
ASME Y14.5-2018, with notes on where ISO 1101:2017 and GPS differ.
Can I print it?
Yes. The PDF is print-ready, with vector figures that stay sharp on paper.
Which edition do I need?
The Cheat Sheet is a free six-page reference. The Handbook is the full book. The Pro Handbook and Inspection Kit adds two protected Excel workbooks, 36 printable flashcards and a guide to using them. Pick an edition above.
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