Cause for pipe press jaw end exploding off

[JimmyS]

Jaw exploded from pipe press cause

 

[Chuck]

A couple of photos of the failed parts might help diagnosis.

 

[SimonG]

Metal fatigue or user error?

 

[oz-plumber]

User Error- definately.

Not sure how you could misuse them to cause the Jaws to explode......but I can expect the supplier / manufacturer can.

Good luck getting the jaws replaced under warranty - because you have used them.
Good luck getting a discount - because you need them.