Dial indicator graduation .0005"Accuracy .0008"Measure the height of internal thread thread with nominal diameter less than 5 1/2"(139.7mm)Optional accessory: thread height standard blocks
Dial indicator graduation 0.01mmAccuracy 0.02mmMeasure the pitch of internal thread with nominal diameter larger than 1 1/2"(38.1mm) and less than 5 1/2"(139.7mm)Optional accessory: ball points,...