GD&T Tolerance Definitions

When using GD&T, tolerances are applied based on the type of geometric control required (e.g. Position, Concentricity, etc). These pages describe the 14 different tolerances specific to GD&T use. The symbols are explained andanapplicationof each one is shown.

Custom Machining

If you need custom mechanical parts machined – we would be pleased to quote your job using conventional CAD files or you can use our unique free CAD software where you can: design your part quickly and easily, get instant pricing, and order online.