Technical Data:
Meet international standard API5B
Measure taper of external thread
Dial indicator stroke: 0.5in
Dial indicator graduation: 0.001in
Accuracy: 0.0015in
Range (L): 1-4 1/2in / 25.4-114.3mm
Taper calculation formula: taper = A/H
A is the reading difference of indicator for two measurements
H is the distance between two measuring positions

Dimensions:
H=278mm
W=178mm
Reference diameter=dia.60mm
Rod/reference diameter=dia.12mm
Ball/contact diameter=dia.1.448mm

Optional:
Ball points: 6252 series