# Thread Chart: Tap Drill & CNC — Thread Sizes & Tap Drills

> Thread Sizes & Tap Drills (iPhone/iPad app by Sachinbhai Surani.)

- Source: https://appshunter.io/ios/app/thread-chart-tap-drill-and-cnc/id6799089886 (this page in markdown: same URL + `.md`)
- Developer: [Sachinbhai Surani](https://appshunter.io/developer/1838685550)
- Category: Utilities
- Price: Free with in-app purchases
- Age rating: +4
- Requires: iOS 15.6 · 50 MB
- Languages: American English
- Released: 2026-08-24
- Data updated: 2026-09-10
- User reviews in markdown: https://appshunter.io/ios/app/thread-chart-tap-drill-and-cnc/id6799089886/reviews.md

## What is Thread Chart?

Thread Chart: Tap Drill & CNC is a professional reference and calculation tool designed for machinists, CNC operators, engineers, fabricators, mechanics, and manufacturing professionals.

Quickly find common thread specifications, tap drill sizes, thread pitches, and machining information without carrying printed charts. Use the app as a convenient on-the-job reference for thread selection, drilling, tapping, and CNC machining tasks.

Key Features:
• Comprehensive thread size reference
• Tap drill size lookup
• Metric and Imperial thread support
• Thread pitch information
• Major, minor, and pitch diameter references
• CNC threading calculation tools
• Internal and external thread information
• Fast search and easy filtering
• Clear, shop-friendly interface
• Useful for machining, fabrication, and engineering

Perfect For:
• CNC Machinists
• Machine Shop Professionals
• Engineers
• Fabricators
• Mechanics
• Manufacturing Technicians
• Engineering Students
• DIY Machining Enthusiasts

Keep essential thread and tap drill information at your fingertips with Thread Chart: Tap Drill & CNC.

in-app purchase included 
Lifetime to Remove Ads

Privacy Policy : https://semiconhub.in/manager/privacy.html
Terms and Condition : https://semiconhub.in/manager/tcondition.html

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime Premium | $14.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-08-24

No release notes.

## More apps by Sachinbhai Surani

- [Video Splitter Editing](https://appshunter.io/ios/app/video-splitter-editing/id6752292341)
- [GPS Distance & Area Measure](https://appshunter.io/ios/app/gps-distance-and-area-measure/id6752772393)
- [Auto Stamper Timestamp](https://appshunter.io/ios/app/auto-stamper-timestamp/id6753070477)
- [English To Turkish Translate](https://appshunter.io/ios/app/english-to-turkish-translate/id6753586110)
- [Sheet Metal Calculator Pro](https://appshunter.io/ios/app/sheet-metal-calculator-pro/id6753674123)
- [ElbowCalc - Flat Pattern Maker](https://appshunter.io/ios/app/elbowcalc-flat-pattern-maker/id6753796014)

All apps by Sachinbhai Surani: https://appshunter.io/developer/1838685550

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-10.*