ISO 286 fit table, review checklist and guides for Ra and datums.
Many assembly problems come down to one line on the drawing. These four sheets stay next to your screen so you can choose the fit, call out the right finish, define datums and review before release.
What you get
Clearance and interference for 7 fit pairs, from 3 to 120 mm
One-page review checklist, printable
Which Ra to specify, by process and function
How to choose primary, secondary and tertiary datums
Product video (Portuguese narration)
Preview
ISO 286 fit table, page excerptReview checklist, printableRa roughness guideDatum guide, first page
Who it's for
Parts don't assemble or end up too loose
Your drawings call Ra 0.8 on every face
Your drawings use datums the inspector can't fixture
Parts have been made from an outdated drawing more than once
Send us one drawing
We return a review with issues found, suggested fixes and a fixed-price scope. Free, under NDA if you need one.
