Fit & Tolerance Test Kit

A printable stepped fit gauge with six matching pins and progressive hole clearances. Free local STL export, no login, no subscription, no uploads to our servers.

Building model…

Before you print: Print all six pairs from the same filament and orientation, and physically compare the holes and pins. This is a print calibration gauge rather than a slicer tolerance guarantee. Always check model dimensions, sliced layers and physical fit; watertight geometry does not prove mechanical performance.