AppPriceDataObserved data
AppPriceData
Black Cat Systems
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.
Current observed download price for the selected storefront. Open regional pricing to compare converted prices across countries.
Items currently visible on Apple’s public App Store page. This may not be the complete App Store Connect catalog.
Source: Apple public App Store page · Publicly visible items only · Checked Aug 7, 2026
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.
Quick answers based on the latest observed App Store data.
The latest observed download price is $2.99. Open the official App Store link to confirm the current checkout price.
Apple's public page currently shows 0 purchase items in this storefront. The public list may be incomplete.
Yes. App Store prices can vary by storefront, currency, taxes, and developer pricing. We currently have 1 regional observations.
