- Quick depth verification for holes, slots, and cut-outs up to 6 inches deep, enabling fast inspection and reduced rework. - The ends of both contacts are made of head treated steel and are precision ground to a radius that maintains a practical clearance from the smallest hole the gauge penetrates into. - Double-acting handles are rigidly attached to the contact piston and automatically self-centering for reliable positioning and repeatable readings. - A constant spring tension provides even contact pressure for consistent results across measurements. - Use scenario 1: In metal fabrication or machining, verify the depth of mounting holes or dowel holes to ensure components fit correctly. - Use scenario 2: In automotive body work or equipment assembly, check slot and cut-out depths to confirm proper clearance and alignment of parts. - Use scenario 3: In quality control, quickly screen batches of parts to confirm holes and cut-outs meet depth requirements before final assembly.