For use in setting corerct head clearance on units. See our guides here for how to use. 

• Range: 0 to 22" (with included 6 extension rods 1", 2", 3", 4", 5", 6") Resolution: 0.0005"

• Super high precision dial indicator - double the accuracy of regular indicators

• Indicator Gauge conforms to AGD standard and Federal Accuracy specifications

• Indicator can be mounted on center or side of base. Base is 4" long.

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