This app is only available on the App Store for iOS devices.

iPhone Screenshots

Description

ISO Tolerance is an application that brings ISO Hole Basis Tolerance charts to your iPhone.
Based on ISO 286,the application allows users to enter a nominal diameter for hole or shaft, select the tolerance grade using a simple selector, and reveal the upper and lower tolerances based on the selected grade.
The application calculates tolerances for nominal diameters between 0 and 500 mm in metric mode.
The application calculates tolerances for nominal diameters between 0 and 19.685 inches in imperial mode.
Tolerance grades range from 'A' to 'ZC' for holes, and 'a' to 'zc' for shafts.
Additional functionality of ISO 2768 tolerances.
Users can now find tolerances for Linear dimensions, Chamfers and Radii, Angles, Straightness, Flatness, Perpendicularity, Symmetry, and run out as defined in ISO 2768 table 1 and table 2.
Ideal for CNC Machinists, Manual Machinists, Inspectors, Designers, Draughtsmen and Students wishing to dispense with tolerance charts and books, bringing the convenience of all the information direct to the iPhone.

What’s New

Updated Code for latest IOS
Fixed issue with keyboard entry in countries with decimal symbol as comma

Worthless, wasted a dollar

Not worth the data download cost, definitely not worth a dollar

Wrong hole tolerances

For a M3 M7 the ISO tolerance is +0.00-.012 not -.02-.012. This caused me problems

Developer Response,

The app data is correct
for dimensions up to and including 3mm an M7 tolerance is -2,-12
for dimensions over 3 mm up to and including 6mm the tolerance is 0, -12
Sorry you encountered problems, but they were not caused by incorrect data in this app

Information

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.

Supports

• Family Sharing

  With Family Sharing set up, up to six family members can use this app.