Machinists and mechanics need quick access to tap drill size charts during repairs, but standard charts omit fine thread sizes and looking up sizes interrupts workflow.

Existing paper charts are incomplete and slow to search; digital versions require stopping work to look up on a phone or computer.

Severity

2Mild

Willingness to Pay

implied

Added

May 6, 2026

Workarounds Described

uses printed tap drill chart
looks up sizes on phone mid-repair

Implied Software Gaps

Instant offline reference for thread sizes with voice control and AR overlay

App Concept

TapQuick Pro

A mobile-first, offline app that provides instant access to complete tap drill size charts for UNC and UNF threads, including fine sizes. Features voice search and augmented reality overlay for hands-free use during repairs.

Key Features

Complete UNC/UNF tap drill chart from #0 to 1 inch
Voice-activated size lookup (e.g., '1/4-20 tap drill')
Augmented reality overlay that projects drill size onto the workpiece
Offline access and no ads

Target Users: Mechanics, machinists, and DIY enthusiasts in automotive repair, manufacturing, and field service who frequently need thread repair information on the go.

Revenue Model: $4.99 one-time purchase for full app; $2.99 for annual updates subscription

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