HILO WELDING GAUGE UW-3220

Changes from standard to metric, simply remove gauge body,turn scale over and replace body.
Measure internal misalignment
Measure fit-up gap
Measure bevel on end preparation
Measure the crown height of the butt welds
Measure fillet weld size
Measure scribe line, socket welds
Measure pipe wall thickness
Can be calibrated to NBS standard