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Screenshots

  • Drill Bit Converter screenshot 1
  • Drill Bit Converter screenshot 2
  • Drill Bit Converter screenshot 3
  • Drill Bit Converter screenshot 4

About Drill Bit Converter

If you have ever had to try to figure out which Fractional or Decimal bit is close enough to a particular Metric size, this is the app for you. Drill Bit Converter performs rapid conversions between Inch Fractional, Inch Decimal, Metric, and Gauge Drill Sizes. Simply select the unit of interest, type in a value, and the nearest equivalent of all other unis will be instantly displayed. When conversions to Inch Fractional or Gauge sizes are not exact, the app will display the amount of error. You can then easily tell if you have an alternative drill bit on hand that is close enough for your project. The app also includes a help display to explain the key features of the app, and it includes several pdf files containing helpful reference charts for drill and tap conversions and selections. You can email or print these charts. Printing requires an Air Print Connection. We welcome your feedback and suggestions for improvement. Thanks for considering our offering.

What’s new

Version 1.10 · Updated July 10, 2025

Some UI Improvements Updates for iOS 18

App privacy

The developer, Dohmann Engineering Services, reported these privacy practices to Apple.

Data Not Collected

The developer does not collect any data from this app.

Alternatives to Drill Bit Converter

Looking for apps like Drill Bit Converter? Here are 6 similar apps on the App Store. The highest rated is Thread Calculators (5.0/5), and 2 of the 6 are free to download.

Drill Bit Converter vs. alternatives
App Rating Price Last updated Compare
Drill Bit Converter – 0.99 USD July 10, 2025
Drill Calc 4.1 / 5 (19) 2.99 USD Nov 22, 2024 Compare
Transformer Calc NEC – 0.99 USD Jul 10, 2026 Compare
MachiningGuru – Free Jun 17, 2026 Compare
Bend Logic: Conduit Bending – 2.99 USD Sep 26, 2026 Compare
Thread Calculators 5.0 / 5 (1) 1.99 USD Dec 1, 2025 Compare
Fraction Calculator: Inch & CM 4.7 / 5 (3) Free Mar 20, 2026 Compare

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