Measure depths in tight spots and up to 22" deep with this super versatile tool. The precision measuring instrument is used to determine the depth of any shape that has a step, groove, or slot. Indicator gauge conforms to AGD standard and federal accuracy specifications; can also be mounted on center or side of the base. 

Item# AT208720

Range: 0 to 22" (with included 6 extension rods 1", 2", 3", 4", 5", 6")

Resolution: 0.0005"

Super-high precision dial indicator - twice the accuracy of regular indicators

Base length: 4"

Includes 10 attachments (6 extension rods and 4 feeler points)

Resolution: .0005"/.01mm/1/128"

Protective case included