Tap Drill Chart - Find Recommended Drill Size for Minor and Diameter Sizes

Every machinist and DIY enthusiast knows the importance of tapping threads for screws, bolts, and other threaded fasteners. However, determining the correct tap drill size can be challenging. That's where our Tap Drill Chart comes in handy! At BizzLibrary.com, you can access a comprehensive chart for all standard tap drill sizes, making it easier than ever to drill the right hole size for maximum thread engagement.

What Is a Tap Drill Chart?

A tap drill chart is a reference guide that helps you determine the correct size of the drill bit to use when creating a threaded hole for screws or bolts. The chart lists the drill size and corresponding thread engagement percentage for various thread sizes and diameters. Using the correct tap drill size ensures that the threads will have the right level of engagement, preventing stripped threads or loose fasteners.

How to Use the Tap Drill Chart

Using a tap drill chart is simple, even for beginners. First, determine the thread size and diameter needed for your tapping operation. Next, find the corresponding row for your size on the chart. The chart will provide you with the tap drill size required for maximum thread engagement, as well as the percentage of thread engagement that can be expected.

Download Our Tap Drill Chart in PDF Format

At BizzLibrary.com, we offer a comprehensive Tap Drill Chart in PDF format, available for free download. Our chart covers a wide range of standard tap sizes, including machine screws, fractional sizes, and metric sizes. The chart also includes useful information on minor diameter, drill size, and thread engagement percentage, making it an essential reference guide for any machinist or DIY enthusiast.

Visit BizzLibrary.com today to download your free Tap Drill Chart in PDF format. We offer a wide range of other useful templates and documents for your business or personal use, all available for instant download.