Tap And Drill Chart Calculator

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

By: Greg A Miller App

Calculate charts for various thread percentages for SAE and Metric screws

Overview

Google Play Store

Downloads

367,242 ▲ 106

Data as of 2026-08-03

Rating:

4.45

(536)

Version:

4.2.3

Last updated: 2025-06-30

Ranking

#115,524 ▼ 89

Overall

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.

This app requires no permissions. Please rate this app after evaluating it, it is knowing that people use and love my apps that keeps the truly free app developers producing apps.

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:

2026-08-03

Compare stats and ranking:

Ranking

# 115,524 ▼ 89

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.