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Measure the crest diameter of internal thread with nominal diameter larger than 2 3/8” (60.325mm) and less than 20”(508mm)
Range(L): 2 3/8-5 1/2“ / 60.325-139.7mm
Dial indicator stroke: 5mm
Dial indicator graduation: 0.01mm
Accuracy: 0.02mm
L: 260mm
A1: 112mm
A2: 91mm
Optional accessory:
-Height standard and zero standard block
