- The 4-Inch Pocket Brass Calipers are crafted from solid brass, delivering durability and reliability for accurate measurements and smooth operation. - Featuring dual graduations in imperial and metric formats, these calipers offer a least count of 1/16 inch on the imperial scale and 0.1 mm on the millimeter scale, ensuring precise measurements for a wide range of applications. - Ideal for various crafts and projects, these calipers are perfect for measuring small objects such as nails, screws, lenses, and tubing, making them a versatile tool for both hobbyists and professionals. - The vintage design of these sliding gauge vernier calipers not only enhances functionality but also adds an elegant touch to your toolbox. - Use scenarios include measuring the diameter of small screws for proper fitting in projects, determining the width of tubing for plumbing applications, or gauging the thickness of lenses in optical work. - With their compact size, these calipers are easy to carry and store, making them a practical choice for on-the-go measurements.