- Precise Measurement: The dial bore gauge measures diameters from 50MM (1.97") to 160MM (6.23") with exceptional accuracy of 0.01MM (0.0003"), ensuring reliable readings for your projects. - Versatile Use: Perfect for measuring deep cylinders, pipes, and holes. This tool effectively identifies geometric irregularities such as ovality and taper, making it essential for automotive, manufacturing, and various industrial applications. - Advanced Technology: Equipped with a two-point contact system, this gauge provides precise hole diameter measurements and detects geometry inconsistencies. The self-centering feature and easily adjustable aperture gauge guarantee quick and accurate results. - Comprehensive Kit: The set includes a hole gauge with an insulating grip, two self-centering measuring heads, an extension bracket, gasket, and pre-installed housing, covering all your measurement needs. The measuring heads come with a movable probe on one end and a replaceable probe on the other, accommodating different aperture sizes. - Practical Applications: Use this tool for inspecting engine cylinders during repairs, ensuring pipes meet specifications in plumbing, or verifying hole dimensions in manufacturing processes, making it an invaluable asset in any professional toolkit.