i-Machinist

i-Machinist

iMachinist - Cnc calculator

9 ratings
6 reviews
Free

Details

  • Released
  • Updated
  • March 19, 2019
  • November 24, 2025

Features

i-Machinist screenshot #1 for iPhone
i-Machinist screenshot #2 for iPhone
i-Machinist screenshot #3 for iPhone
i-Machinist screenshot #4 for iPhone
i-Machinist screenshot #5 for iPhone
๐Ÿ–ผ๏ธGet Icon
Iconsโ†˜๏ธŽ

About

This utility app assists machinists with CNC calculations, including cutting speed, RPM, and feed rate. It also provides databases for hole and shaft tolerances, as well as detailed thread specifications.

โœ“Cutting speed calculation
โœ“RPM calculation
โœ“Feed rate calculation
โœ“Hole and shaft tolerance database
โœ“Thread data
โœ“Milling, drilling, and turning operations
Show original description

What's New in i

2.0

November 24, 2025

- new CNC Calculation added - thread Database updated - minor bug fixed

More

User reviews

Awful!

This app made me want to stop working as a machinist. Donโ€™t waste your time. I deleted this app within 5 minutes

No SAE option - worthless 2 me

Looks nice, but worthless if you programmer canโ€™t write a simple conversion to SAE units

Great app, but nagging with ads.

This app is very useful for me to easily get all thread information when making threads on my lathe.
The only thing I donโ€™t like is ad nagging. Since we canโ€™t buy the app, I find very annoying not being able to disable this nagging very time I use the app.
If this ad nagging is necessary, please add a buying option.
Show more

Good app but needs inch data too

It would be a major improvement to include an inch / SAE capability alongside the metric. It would up the usability in the US certainly. Please consider the change.

Lost features for iPhone

iMachinist app for Android, same developers, allows the user to switch between metric and imperial units.

Developer apps

FAQ

What calculations does i-Machinist perform?

i-Machinist calculates cutting speed, RPM, and feed rate for milling, drilling, and turning operations. It also provides data for hole and shaft tolerances and various thread specifications.

Does i-Machinist have ads?

No, i-Machinist is ad-free, providing an uninterrupted user experience for calculations and data reference.

What kind of tolerance data is available in i-Machinist?

The app includes data for hole and shaft tolerances, covering zone, grade, and diameter specifications for precise fits.

Can i-Machinist help with thread specifications?

Yes, i-Machinist offers detailed thread data, including maximum and minimum values for outer diameter, pitch diameter, core diameter, and thread height.

What devices is i-Machinist available on?

i-Machinist is currently supported on iPhone devices.

How often is i-Machinist updated?

The latest version of i-Machinist was updated on November 24, 2025, indicating recent development and potential for ongoing improvements.

What is the user rating for i-Machinist?

i-Machinist has a rating of 2.6 stars based on 9 user reviews.

Is i-Machinist suitable for beginners?

The app is described as simple to use, making it accessible for machinists of all experience levels needing quick calculations and reference data.