Depth gauges are tools used to measure the depth of holes, grooves, or other surfaces. They are commonly used in various fields, including construction, engineering, and woodworking. Depth gauges can come in different forms, such as digital, dial, or mechanical, and are designed to provide accurate measurements to ensure precision in projects. These instruments typically feature a measuring rod or blade that extends into the material being measured. Some depth gauges are equipped with a scale or digital display for easy reading. They are essential for tasks that require specific depth measurements, such as drilling or setting fasteners, ensuring that work is completed correctly and safely.