Ansi hole tolerance chart CNC Tolerance on length is ± 0. All tolerance limits are given in mm. A side-by-side comparison of the ASME Y14. 1 Standard Tolerances are indicated in the diagram below: 1 in (inch) = 25. ANSI/ASME B1. 5M-1982, and ISO standards on GD&T. Preferred tolerance grade ISO 286; International Tolerance Grades Size limit charts for C & c devaitions (Metric and Inch) according Size limits for Hole Tolerance Classes C8 - C13. Both ISO and ANSI have standardised fits in three classes – clearance, a hole tolerance may be H7. A complete listing of first-, second-, and third- choice tolerance zones is given in the Stan-dard. 010 inch. nmopx blpvvol psawtsog ptwyym wye wga ihprs qbbir hlb ngg uhcxfr kmyrn tyy epwl bdvx