stability design: Magnetic feet and a locking screw secure the depth gauge on various surfaces, providing stable and accurate measurements. LCD digital display: Clear LCD readout for easy reading of measurement values, with a convenient switch between inches and millimeters to meet diverse needs. Precise measurement range: 080 mm range with an accuracy of 1 mm, delivering reliable results for woodworking projects. Easy to operate: Powered by a 3V button battery, the depth gauge is easy to turn on/off, with simple unit switching and value resetting at your fingertips. Practical use scenarios: Drilling depth control: Set and verify precise drilling depths to ensure consistent hole depths. Groove and dado work: Accurately measure groove depths in joinery and inlays. Cabinet and hardware alignment: Check mortise depths and hinge or shelf pin depths for proper installation.