---
title: "Drill Size Charts - Drill bit size tables to show US Number / Letter and Fraction Inch sizes in Decimal Inch and Metric Conversions — App Overview"
url: https://marlvel.ai/apps/drill-size-charts-drill-bit-size-tables-to-show-us
category: Reference
developer: Chewy Applications
platforms: ios
rating: 4.5 (21 ratings)
pricing: paid
report_level: overview
generated: 2026-04-27
last_verified: "2026-04-27T09:57:08.510Z"
---

<!-- SECTION: Key Insight -->
> **Key Insight:** This is a straightforward, low-cost reference tool designed to eliminate manual measurement and conversion errors for professionals working with drill bits.

<!-- SECTION: Quick Facts -->
| Metric | Value |
|--------|-------|
| Category | Reference |
| Rating | 4.5 ★ (21) |
| Pricing | paid |
| Platforms | iOS |
| Latest Version (iOS) | 2.0 |
| Developer | Chewy Applications |

<!-- SECTION: Summary -->
## What is Drill Size Charts - Drill bit size tables to show US Number / Letter and Fraction Inch sizes in Decimal Inch and Metric Conversions?

Drill Size Charts is a reference utility that provides decimal inch and metric conversions for US Number, Letter, and Fractional-Inch drill bits. The app simplifies tool selection by offering a consolidated comparison table and a search function for quick identification of drill sizes.

<!-- SECTION: Key Features -->
## Key Features

- **Comprehensive Drill Tables**: Includes dedicated charts for US Number/Letter gauges, Fractional-Inch, and Metric sizes.
- **Combined Comparison Table**: Provides a unified view of all drill types to facilitate easy size comparisons.
- **Search Functionality**: Allows users to quickly locate specific drill sizes by revealing a search bar within the tables.
- **Universal Compatibility**: Supports all iOS device orientations and is a universal app for iPhone, iPod Touch, and iPad.

<!-- SECTION: Target Audience -->
## Who is it for?

Engineers, tradespeople, fabricators, and students who require quick, on-the-job drill bit size conversions.

<!-- SECTION: Links -->
## Links

- [App Store](https://apps.apple.com/us/app/drill-size-charts-drill-bit-size-tables-to-show-us/id418091864?uo=4)
- [Full Intelligence Report](https://marlvel.ai/apps/drill-size-charts-drill-bit-size-tables-to-show-us)

---
*This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/drill-size-charts-drill-bit-size-tables-to-show-us).*
*Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*