These quality plyers are produced by Leponitt. There are several different ones available, each for a special purpose in glass work. The very basic
Breaker Grozer Plier for stained glass work Sun and Moon Stained Glass Co. - Stained glass supplies & tools
Fan Out Grozing Pliers for Stained Glass
Running Pliers (breaks glass cleanly after scoring) - Stereoscopic Mirror
Lightweight for reduced hand fatigue High-quality German made tool Adjustable jaws allow scores to be run from any angle Deep throat allows the pliers
Silberschnitt Glass Cut Running Pliers BO 700.0
Rupture Stained Glass Pliers With Rubber Tips Non-slip Grips For Making Stained Glass Mosaics
Essential Stained Glass Tool KIt
How to Make Stained Glass - Breaking Glass with Grozing Pliers
Glass Running Pliers With Rubber Tips Adjustable Screw Heavy - Temu
Breaker/Grozer Pliers by Studio Pro - Franklin Art Glass