Technical Data:
Meet international standard API5B
Measure taper of internal thread
Range (L): 1.5-6in / 38.1-152.4mm
Dial indicator stroke: 1in
Dial indicator graduation: 0.001in
Accuracy: 0.0015in
Taper calculation formula: taper = A/H
A is the reading difference of two measurements
H is the distance between two measuring positions

Dimensions:
Reference length=305mm
Reference dimension=113mm
Ball/contact diameter=dia.1.448mm

Optional:
Ball points: 6252 series