Saturday, June 22, 2024

Crestogrip waterpump pliers



 According to the always useful Alloy Artifacts site (scroll down) These box joint (or slip joint) pliers were trademarked in 1957. The detents for adjustment don't look like they would be strong enough and also that they would wear quickly. The groove joint type of pliers below are a much stronger design.




Patent 2,592,927

1 comment: