Tap And Drill Chart Calculator

Name: Tap And Drill Chart Calculator
Rating: 4.45 (536 reviews)
Author: Greg A Miller

By: Greg A Miller

Calculate charts for various thread percentages for SAE and Metric screws

Features & Capabilities

App to calculate charts for various thread percentages for standard SAE and Metric screws. Also shows hex nut size and a diagram with the screw threads to check TPI/TPMM and screw diameter.

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User Growth & Download Statistics

App

By:

Downloads:

Rating:

Version:

4.2.3 Last updated: 2025-06-30

Version code:

Creation date:

2016-07-24

Publisher country:

Size:

1.82MB

Email:

gm*****@gregmiller.net

URLs:

Website ,Privacy policy

Full description:

Source:

Google Play Store

Data ingested on:

2026-06-12

Compare stats and ranking:

Ranking

# 113,723 ▲ 953

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Android app. Please use these information below to contact the Android app developer.

Developed by:

Greg A Miller

Google Play Store

https://play.google.com/store/apps/details?id=com.principiaprogramatica.tapanddrillcalculator

Email:

gm*****@gregmiller.net

Website:

http://www.principiaprogramatica.com

User Reviews

Reviews praise the app for accuracy, clarity, and ad-free usefulness, with strong metric/SAE support and thread-engagement guidance. The main recurring drawbacks are gaps in size coverage (notably M14x1.25 and #14-20), missing data compared to older chart apps, and requests for broader thread standards and features.

Pros

Accurate and high-quality information.
Clear, fast, and easy to use with a clean layout.
Ad-free experience with no fluff, focused data.
Comprehensive tap/drill data with metric/SAE options and adjustable thread engagement, showing hole sizes and recommended drill bits.

Cons

Missing tap sizes (e.g., M14x1.25 and #14-20) and generally incomplete size coverage.
Missing information compared to older drill-bit charts apps.
Requests for more sizes and standards (NPT, BSP, PSPP) and additional features.

Recent reviews

I really like this tap drill app. it's got everything you need and nothing you don't. Cutting taps, roll taps, engagement percentage. Nice layout. Perfect.