Languages
English,Japanese,Korean,Chinese
About this app
Thread Hole Tap Calculator is a paid standalone utility for quickly checking threaded hole parameters in workshops, repair work, hardware machining, and engineering prototypes. The app calculates recommended tap drill diameter, minimum drilling depth, tapping depth, remaining safety allowance, and breakthrough risk from metric thread size, target effective thread depth, plate thickness, blind-hole allowance, and drill point angle. You can also create commonly used specification templates and save local project records for quick review before repeat machining. All calculations are performed locally on your device. No login is required, the app does not connect to the internet, and no user data is collected.
Screenshots
iPad screenshots
Features
- Metric thread specification selection
- Bottom hole diameter reference
- Effective thread depth calculation
- Blind hole drilling depth estimation
- Drill tip angle compensation
- Plate thickness penetration check
- Tap allowance reminder
- Common Specification Templates
- Unit switching
- Local Project Records
- Result copy and review checklist