# GM Pro AF

> Machining parameter calculator for Gorilla Mill cutters, offering quick calculations for various materials. (iPhone/iPad app by Gorilla Tools, Inc.)

- Source: https://appshunter.io/ios/app/gm-pro-af/id6474267202 (this page in markdown: same URL + `.md`)
- Developer: [Gorilla Tools, Inc](https://appshunter.io/developer/1480564474)
- Category: Utilities
- Price: Free
- Rating: 4.50/5 from 2 App Store ratings
- Age rating: 4+
- Requires: iOS 15.0 · 53 MB
- Languages: American English
- Released: 2024-04-26
- Data updated: 2026-09-02
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/gm-pro-af/id6474267202/reviews.md

## What is GM Pro AF?

The Gorilla Machinist Pro App immediately configures running parameters to put you right in the wheelhouse of all the Gorilla Mill family of cutters. Accurate, dependable, and living on the hairy edge for those “other” end mill and drill lines. RPM, IPM, SFM and Chimp-Loads are calculated at the blink of an eye. A wide variety of machining materials, with no cumbersome long-winded questionnaire asking if all the planets are aligned or if your coolant stinks. And now it’s new and improved!  WHAT you say? Yerp, it’s chalked full of calculations and formulas for everything machining so you too can be a “Rock Star” on the shop floor. Walk onto the shop floor with the confidence and swagger of Connor McGregor walking into the Octagon. Share your findings with friends, co-workers, and family…or DON”T and just tell folks it’s all in your noodle upstairs!

## Key features

- Instant configuration of running parameters
- Calculates RPM, IPM, SFM, and Chimp-Loads
- Supports a wide variety of machining materials
- Quick calculations without lengthy questionnaires
- Share machining findings


## Frequently asked questions about GM Pro AF

### What is GM Pro AF used for?

GM Pro AF is used to instantly configure running parameters for Gorilla Mill family of cutters. It calculates essential machining data like RPM, IPM, SFM, and Chimp-Loads quickly for various materials.

### Is GM Pro AF free to use?

Yes, GM Pro AF is available for free and does not require any payment to download or use its core functionalities.

### What devices does GM Pro AF support?

GM Pro AF is designed for Apple devices and is supported on iPhone, iPad, and iPod.

### How often is GM Pro AF updated?

The app was last updated on May 27, 2026, with version 1.3.0. While the last update date is in the future, this indicates ongoing development and potential for future improvements.

### What is the age rating for GM Pro AF?

GM Pro AF has an age rating of 4+, making it suitable for a wide range of users.

### Does GM Pro AF have ads?

No, GM Pro AF does not contain advertisements, providing an uninterrupted user experience.

### Can I share my machining calculations from GM Pro AF?

Yes, the app allows you to share your findings with friends, co-workers, and family, facilitating collaboration and knowledge sharing.

### What kind of machining materials can GM Pro AF handle?

GM Pro AF supports a wide variety of machining materials, and its calculations are designed to be efficient without requiring extensive user input.

## Version history (last 5 releases)

### 1.3.2 — 2026-08-27

Fixed an issue where the End Mill calculator could fail to return results for certain Cast Aluminum material and tool combinations.

### 1.3.1 — 2026-06-01

Update notes for Neanderthal tools.

### 1.3.0 — 2026-05-27

Neanderthal tools are now available, plus new tool-specific notes in Speeds & Feeds calculators to help you confirm key setup details and dial in parameters faster.

### 1.2.12 — 2026-05-09

Updated disclaimer for Speeds & Feeds calculator.

### 1.2.11 — 2025-12-24

Updated speeds and feeds data for 3D Surfacing.

## Apps similar to GM Pro AF

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Tungaloy](https://appshunter.io/ios/app/tungaloy/id1641861093) | 5.0 (2) | Free | Utilities |
| [i-Machinist](https://appshunter.io/ios/app/i-machinist/id1456473668) | 2.6 (9) | Free | Utilities |
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| [Longacre Connect](https://appshunter.io/ios/app/longacre-connect/id6449793297) | — | Free | Utilities |
| [Machining Calculators](https://appshunter.io/ios/app/machining-calculators/id6740812774) | — | Free | Utilities |
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## More apps by Gorilla Tools, Inc

- [Gorilla Mill Speeds and Feeds](https://appshunter.io/ios/app/gorilla-mill-speeds-and-feeds/id1480564475)

All apps by Gorilla Tools, Inc: https://appshunter.io/developer/1480564474

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-02.*