A digital depth gauge is a precision measuring instrument used to measure the depth of holes, slots, grooves, and recesses with high accuracy. It features an electronic display that provides clear and instant readings, eliminating the need for manual scale interpretation. This tool is widely used in workshops, machining, and inspection applications for quick and reliable depth measurement.

A surface roughness gauge is a precision inspection instrument used to measure the texture and smoothness of a surface. It evaluates parameters such as roughness average (Ra), peak-to-valley height, and other surface irregularities. This instrument is widely used in manufacturing, machining, and quality control to ensure that surfaces meet specified standards for performance and finish.

An Adjustable Reamer is a precision hand tool used in fitting and machining work to enlarge and finish previously drilled holes to an accurate diameter. Unlike a fixed reamer, the adjustable reamer has blades that can be expanded or adjusted slightly to accommodate different hole sizes. It is commonly used by fitters and machinists when accurate hole finishing is required. The tool helps improve the smoothness, size accuracy, and alignment of holes in metal components.