This highly versatile tool allows for depth measurement in confined spaces and up to a depth of 22 inches. It is a precision measuring instrument designed to ascertain the depth of any form featuring a step, groove or slot. The indicator gauge adheres to AGD standards and federal accuracy specifications and can be mounted either at the center or the side of the base. The digital interface features an extra-large LCD display, facilitating easy reading in inches, metric or fractional units. Measurement range - 0 to 22 inches, facilitated by the inclusion of six extension rods measuring 1 inches, 2 inches, 3 inches, 4 inches, 5 inches and 6 inches respectively Resolution of 0.0005 inches Ultra-precision dial indicator offering double the accuracy compared to standard models, ensuring superior measurement reliability and performance Digital depth gauge with a 4 inches base length Comprises ten attachments, consisting of six extension rods and four feeler points Accuracy (indicator) of +/-0.001 inches