Drill Size Charts - Drill bit size tables to show US Number / Letter and Fraction Inch sizes in Decimal Inch and Metric Conversions
Chewy Applications
About this app
- Category Reference
- Age 10
- Updated Sep 24, 2015
- OS IOS
Editor reviews
A fast, shop-ready drill bit size reference and conversion tool for machinists, woodworkers, makers, and DIYers. Instantly look up US Number, Letter, and Fraction sizes with precise decimal inch and metric equivalents to speed up layout, drilling, and tool selection. Clear tables, instant cross-references, and quick search help you find the right size in seconds, even offline.
Key features:
- Complete US Number, Letter, and Fraction inch tables with decimal inch and millimeter equivalents
- Instant cross-reference between systems for accurate size matching
- Fast search and offline access for on-site and shop use
Ideal for: metalworking, woodworking, fabrication, maintenance, and any task that needs accurate drill bit size charts and metric conversion.
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How to use:
1. Download and open the app; no sign-in required.
2. Choose a chart to browse: US Number, Letter, Fraction, or Metric.
3. Use the search bar to type a size in inch or millimeter and jump directly to matches.
4. Tap any entry to view decimal inch and metric equivalents and cross-reference across systems.
5. Open settings to adjust default units and table display preferences for faster access.