Key benefits - Versatile measuring capability: measure inside, outside, depth and step with two sets of jaws and a probe, covering a wide range of tasks with a single tool. - 0-150 mm range for common parts and projects, enabling precise measurement across typical sizes. - Simple, fast unit switching: one button lets you switch between inches and millimeters for convenient readouts. - Easy to read: extra large LCD screen provides clear readings at a glance. - Convenient power and efficiency: power on by pressing the switch button or by pulling out the ruler; auto-off after 5 minutes of inactivity to save battery. What you get and how it works - Measuring capability: two sets of jaws and a probe support measuring inside and outside dimensions, as well as depth and step measurements. - Measurement range: 0-150 mm, suitable for a variety of parts and applications, with a focus on precision. - Units: quick change between inch and millimeter measuring modes. - Display: extra large LCD screen for easy reading in different lighting conditions. - Power and auto-off: press the switch to turn on, or pull out the ruler to power on; automatically turns off after 5 minutes of non-use. Specifications and usage notes - Measuring modes: inch and millimeter - Range: 0-150 mm - Reading aid: extra large LCD screen - Power options: on/off switch or pull-out ruler to power on - Auto-off: automatic shut-off after 5 minutes of inactivity - Construction supports measuring inside, outside, depth and step with two sets of jaws and a probe Use scenarios - Workshop or machine shop: quickly verify external dimensions and bore sizes of machined parts during assembly to ensure proper fit. - Mechanical fabrication: check internal diameters and depth of holes or bores, as well as step measurements on housings and shafts. - Woodworking or cabinetry: measure groove depths, step heights, and overall piece dimensions to ensure components align accurately during fitting and finishing.