- Double-Action Handles: The robust double-action handles are securely affixed to the plungers, ensuring automatic self-centering for precise measurements. This enables swift and accurate hole, slot, and recess inspections, even in depths up to 6 inches. - Ground Steel Tips: The tips of both contacts are steel and ground to a radius, ensuring smooth clearance even in the smallest holes. This yields accurate gauging results. - Uniform Pressure: Constant spring tension is maintained to provide consistent and uniform pressure during measurements, delivering repeatable results. - Exceptional Quality and Durability: Constructed with high quality materials, the telescoping body offers high rigidity, excellent wear resistance, and durability for frequent use. - Use scenarios: - In machining and inspection workflows to quickly verify hole diameters and depths, as well as slot and recess dimensions, up to 6 inches deep. - During jig or fixture setup to confirm slot width and alignment for proper component seating. - In quality checks for assembled parts requiring consistent contact pressure and reliable repeatability across multiple measurements.