# RPM Calculator — Mag Drills & Annular Cutters

> Mag Drills & Annular Cutters (iPhone/iPad app by BDS Maschinen GmbH (Germany).)

- Source: https://appshunter.io/ios/app/rpm-calculator/id1467339956 (this page in markdown: same URL + `.md`)
- Developer: [BDS Maschinen GmbH (Germany)](https://appshunter.io/developer/1645205808)
- Category: Productivity
- Price: Free
- Age rating: 4+
- Requires: iOS 10.0 · 16 MB
- Languages: English
- Released: 2019-06-12
- Data updated: 2026-09-04
- User reviews in markdown: https://appshunter.io/ios/app/rpm-calculator/id1467339956/reviews.md

## What is RPM Calculator?

The World's only app to help you calculate the cutting speed (RPM) for Annular Cutters and Magnetic Drills. This fully automated app can not only be used for BDS Maschinen GmbH products but also for products from other brands.

This new RPM Calculator App can be used completely offline, independent of internet connectivity. 

This is how the App works...Select the model the magnetic drill you have, select the type of material you are drilling, select the type of annular cutter you are using, select the diameter of the annular cutter in millimeters or in inches and just press the Calculate button. 

Within a fraction of second, the App delivers the result informing you of the required cutting speed (RPM) for the size of the annular cutter as well as on which Gear you need to set your BDS Magnetic Drill.


## Version history (last 3 releases)

### 1.2 — 2019-07-08

Thanks for using RPM Calculator! To make our app better for you, we bring updates to the App Store regularly. 
Every update of our RPM Calculator app includes improvements for speed and reliability.

### 1.1 — 2019-06-11

Bug Fixes.

### 1.0 — 2019-06-10

No release notes.

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## More apps by BDS Maschinen GmbH (Germany)

- [BDS Cutting Speed](https://appshunter.io/ios/app/bds-cutting-speed/id6747040325)

All apps by BDS Maschinen GmbH (Germany): https://appshunter.io/developer/1645205808

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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 2026-09-04.*