Tap Drill Calculator

1.0.0

k4y apps

0.00

0 reviews

1+
Downloads

Free

Tap drill size, thread engagement and clearance holes.

Download from Google Play

About Tap Drill Calculator

Tap Drill Calculator is a tools app developed by k4y apps.

Download Statistics

Tap Drill Calculator has been downloaded 1 times. In the last 30 days, the app was downloaded 1 times.

User Ratings

The app has no ratings yet.

App Information

Tap Drill Calculator is FREE to download. The APK download size is 7.02 MB. The latest version available is 1.0.0. The last update was on August 16, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on Google Play 2 weeks ago.

Description

Tap Drill Calculator gives you tap drill size, percent thread engagement, and clearance holes for inch and metric threads, with the formula shown on screen.

Use this tap drill calculator for Unified (inch) and ISO (metric) threads, using the standard Machinery's Handbook engagement-constant formula, so you can check the math against your own reference before you drill.

TAP DRILL
- Pick a thread from the fractional, number, letter, or metric series
- Choose a percent engagement, including presets for standard and lighter engagement on harder materials
- See the tap drill size and its decimal diameter
- See the closest standard drills above and below your target, each with the actual percent engagement it produces
- Enter a drill size you already have to see the actual percent engagement it gives, in either direction

THREADS
- Search and filter the standard drill and thread table by series
- See each thread's paired tap drill and clearance-hole size for close, normal, and loose fit
- See minimum thread engagement length by material class - steel, cast iron/brass, or aluminum - as a multiplier of nominal diameter
- See the source references behind the table

SAVED
- Save named presets of thread, engagement percent, and drill index
- Keep a history of calculated results
- Load any saved preset or result back into the Tap Drill tab

BUILT FOR THE SHOP FLOOR
- Fast entry with minimal taps
- Works offline
- No account required
- Saved presets and history stay on your device

This app is ad-supported. The calculators are available to use; watching a short ad unlocks saving results, calculation history, and saved presets.

If you need a tap drill size calculator, thread engagement calculator, or clearance hole chart for inch or metric threads, this app gives you the numbers with the formula shown.

Recent changes:
First release.

Pick a Unified or ISO thread and the app gives the tap drill size for the engagement you want, or the percent engagement for a drill you have.

Clearance holes and the formula are shown alongside.

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More data about Tap Drill Calculator

Price	Free to download
Total downloads	1
Recent downloads	1
Rating	No ratings
Ranking	Not ranked
Version	1.0.0
APK size	7.02 MB
Number of libraries	?
Suitable for	Everyone
Ads	Contains ads

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Tap Drill Calculator compared with similar apps

Common keywords of similar apps

Engagement Percent Clearance Formula Presets Saved Holes Inch Shown History Unified Pick Series Actual Table Results Ad Drill Tap Thread Size Calculator Metric Threads Standard App Iso Diameter Hole

Keywords missing from this app

Sizes Cnc Screw Pro Machining Chart Machinist Tolerances Pitch Charts Tools Calculate Enter Feed Time Data Speeds Feeds Cut Calculated Fine Drilling Calc Calculators Cutting Speed Milling Recent Includes Ultra Wire Reference Uns Bspt Dimensions Features Complete Machinists

Downloads over time

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Tap Drill Calculator has been downloaded 1 times. Over the past 30 days, it has been downloaded 1 times.

Changelog of Tap Drill Calculator

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Developer information for k4y apps

k4y apps

hello@k4yapp.com

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Google Play Rankings for Tap Drill Calculator

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Technologies used by Tap Drill Calculator

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