1、STABLE TOOL: Digital display inner diameter gauge is a commonly used measuring tool, which is composed of internal lever measuring frame and digital display indicator 2、APPLICABLE SCENARIO: Digital dial indicator set is widely used in machining, manufacturing and other fields to measure the inner diameter of objects, using comparative measurement method to measure the diameter or shape error of through hole, blind hole and deep hole 3、ACCURATE AND CONVENIENT: The digital dial test indicator has the advantages of high accuracy, wide measuring range, intuitive reading and easy to use 4、TECHNICAL PARAMETERS: Dial indicator come with clear scale, easy reading, sounding up to 150mm, adjacent error 5um, measuring head measuring force is 8n, the maximum contact pressure of bridge is 10n 5、STRUCTURE COMPOSITION: Digital gauge dial test indicator with heat insulation handle, effectively cut off heat, can measure heat parts. With locking device, the measurement data is locked, and the data is more accurate