Precision measurement 0.01 mm accuracy for machining, engineering, and workshop applications Sensitive dial bore gauge provides reliable data for quality control and part inspection Imperial range and durability 01.0 inch measurement range with a clear imperial scale Metal construction withstands workshop conditions for longlasting performance Easy operation Simple structure and smooth dial movement for convenient use Maintains stable readings for internal bore diameters and depth measurements Longlasting construction Robust metal components Compact 56 x 110 mm design that resists wear and delivers consistent performance in various industrial and DIY measuring scenarios Use scenarios Quality control and part inspection in machining shops to verify bore sizes and tolerances Engine and machinery maintenance for measuring internal bores in cylinders, housings, and related components DIY and workshop projects requiring precise bore and depth measurements during part fabrication or assembly