Key features and benefits - Covered rack for longer life and chip-free operation The covered rack design protects the mechanism from debris and wear, helping extend life and maintain accuracy. - 4-way measurement for outside, inside, depth and step Measures outer diameters, inner diameters, depths, and steps with a single tool, reducing the need for multiple gauges. - Adjustable dial for easy reading Clear, easily readable scales on the dial improve measurement speed and reduce reading errors. - One full-turn lock with positive locking action A secure locking mechanism prevents drift during transfer and ensures consistent results. Practical applications - Woodworking Use to verify the outside diameter of dowel stock, the inside diameter of holes, the depth of mortises, and the height of steps in mouldings or profiles. - Metalworking and machining Check outer diameters on shafts or rods, measure bore and internal diameters, assess hole depths, and inspect stepped features on components or fasteners. - Home improvement and DIY Confirm clearance for hardware fits, verify pipe or tube dimensions, and check stepped features on fittings or profiles during installation. Function, compatibility, size, material, and performance notes - Function: Four-mode measurement with a readable dial and a secure one-turn positive lock for stable readings. - Compatibility: Suitable for a range of small to medium components requiring outside, inside, depth, and step measurements. - Size: Designed to accommodate common measurement tasks in workshops and on job sites. - Material: Built for durable, long-term use with a covered rack to protect internal components. - Performance: Combines multiple measuring needs into one instrument, with a focus on reliability and ease of use.