Drill Calc

Name: Drill Calc
Price: 2.99 USD
Rating: 4.1 (18 reviews)
Author: Black Cat Systems

By: Black Cat Systems

Utilities

Features & Capabilities

Need to find the right drill bit size for a hole? Drill Calc calculates the correct drill bit size to use for threaded holes, based on the bolt (tap) diameter and thread pitch and percentage, for both inch and metric threads. Close and tight fit hole sizes for many popular drill sizes are also displayed.

It also has tables of standard inch fractional and numeric drill bit sizes, as well as complete information for various pipe sizes. There is also detailed information about the commonly used sizes of wood screws.

Buy your copy of Drill Calc today, and put away your drill chart.

User Growth & Download Statistics

App

By:

Black Cat Systems

Rating:

4.10

(18)

Version:

2.5 Last updated: 2024-11-22

Version code:

870562663

Creation date:

2009-02-10

Compatible devices:

Size:

5.03MB

Price:

2.99

URLs:

Website ,Privacy policy

Full description:

Source:

Apple Apps Store

Data ingested on:

2026-06-07

Compare stats and ranking:

Ranking

# 308,807 ▲ 939

For Developers

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Contact the developer

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Developed by:

Black Cat Systems

Apple Apps Store

https://apps.apple.com/us/app/drill-calc/id304434324

Website:

https://www.blackcatsystems.com/iphone/drill_calc.html

User Reviews

I am a hobbyist machinist. I am always using Drill Calc for looking up drill sizes when I am threading. One feature I would appreciate is an all encompassing decimal lookup chart. This single chart would contain fractional, lettered, numbered and metric drill sizes. I also would find it helpful if you supplied the data for doing external threading.