- Double action handles are securely attached to the contact plungers, ensuring automatic self-centering for precise measurements. - Ideal for quickly checking holes, slots, and recesses up to 6 inches deep, making it a versatile tool for various applications. - Both contact ends are made from heat-treated steel and precision ground to a radius, providing optimal clearance for even the smallest holes the gauge can enter. - Features constant spring tension that guarantees uniform contact pressure, resulting in accurate and reliable measurements. Applications: - Perfect for machinists and fabricators who need to verify dimensions in tight spaces or deep recesses during quality control checks. - Useful for woodworking projects where precise hole depth measurement is crucial for accurate doweling or drilling. - Essential for automotive technicians assessing fitment and alignment in intricate components. This gauge combines durability, precision, and ease of use, making it an indispensable tool for professionals in various fields.