# Tap Drill Pocket

> Thread Chart for Machinists

Canonical page: [https://chrome-stats.com/d/id6763918301](https://chrome-stats.com/d/id6763918301)

## Overview

- **ID:** `id6763918301`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** 磊磊 张
- **Category:** Utilities
- **Version:** 1.0.0
- **Last updated:** 2026-04-28
- **First published:** 2026-04-28
- **Size:** 663 KB
- **Data as of:** 2026-09-04
- **Store listing:** [Apple App Store](https://apps.apple.com/at/app/tap-drill-pocket/id6763918301?l=en-GB)
- **Website:** [https://openrowan.com/apps/tapDrillPocket/](https://openrowan.com/apps/tapDrillPocket/)
- **Privacy policy:** [https://openrowan.com/apps/tapDrillPocket/privacy/](https://openrowan.com/apps/tapDrillPocket/privacy/)

## Description

Find tap drill, form tap, and clearance hole sizes in seconds. Offline thread charts, custom drill kit, NPT presets, no subscription.

Stop hunting through oily wall charts and half-broken calculators. Tap Drill Pocket gives machinists the tap drill, form tap, and clearance hole sizes they need in seconds.

Built for workbench use:

- Cut tap drill recommendations with adjustable thread percentage
- Form tap drill calculations
- Clearance hole fit options: close, normal, free
- Inch, metric, UNC, UNF, NPT, NPS and common machine screw threads
- Number, letter, fractional, and metric drill sizes
- Custom drill kit: show the nearest sizes you actually own
- Favorites and recent threads for repeated shop work
- Works completely offline, with no account and no subscription

Tap Drill Pocket is a reference tool for trained users. Verify critical jobs against your shop standards, material specs, and tap manufacturer's guidance.

## Rankings

- #2,170,903 — Overall

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Source: [Chrome-Stats](https://chrome-stats.com/d/id6763918301)