What is a Drill Bit Gauge? Types and Uses

Published: 11 Jul 2025

Looking for the right size drill bit? A drill bit gauge makes it easy! Whether new or experienced, this tool makes drilling quicker and more precise. Let’s explore what a drill bit gauge is, how it works, and the types available.

What is a Drill Bit Gauge?

A drill bit gauge is a handy tool used to check the size or diameter of drill bits. It’s a flat piece of metal with holes, made from stainless steel. These holes match standard drill bit sizes. The tool helps identify unmarked or worn bits and measures drill holes accurately.

Types of Drill Bit Gauge

There are several types of drill gauges designed for different needs.

Metric Drill Gauges

Metric drill gauges measure in millimeters and are perfect for international or metric-based projects. Countries using the metric system usually use these. Like 0.5mm or 1mm etc

Imperial Drill Gauges

Imperial gauges show sizes in inches or fractional measurements. They’re widely used in the U.S. and are often included in standard drill bit kits. E.g 1/16″ , 1/2″ etc

Drill Point Angle Gauge

A drill point angle gauge checks the tip angle of a drill bit, usually 118° or 135°, and ensures it’s accurate for clean drilling.

Twist Drill Angle Gauge

Used for checking twist drill bits, this gauge confirms that the spiral angle and tip geometry are correct. It’s ideal for maintaining drilling efficiency and reducing wear.

Drill Point Grinding Gauge

This tool is used while grinding or sharpening. It helps keep the drill bit’s shape and angle correct when you sharpen it manually or with a machine.

Drill Point Sharpening Gauge

A sharpening gauge is similar to a grinding gauge but focuses on restoring the exact cutting angle and point symmetry. It helps improve drill performance and extends bit life.

What is a Drill Gauge Used For?

A drill gauge helps measure, sort, and identify drill bits. It’s used to check bit sizes, confirm correct angles, and even measure the diameter of pre-drilled holes.

How to Use Drill Bit Gauge Tool

Using it is simple. Insert the drill bit into each hole until you find the perfect fit. The labeled size tells you the exact measurement. Some gauges also have angle guides to check or sharpen tips.

Conclusion

A drill bit gauge may be small, but it’s a must-have for anyone working with tools. It saves time, improves accuracy, and keeps your bits organized and ready to go.

FAQs

What’s the average drill gauge price?

Most drill gauges cost between $5 and $20.

What is a drill bit sizer?

A drill bit sizer, also known as a drill gauge, is a tool that helps you find the right bit size or check the size of holes and worn bits.

Can I use a drill gauge to sharpen bits?

Yes! Some gauges come with angle markings to help you sharpen or grind your drill points correctly.