The jaws of grozers are serrated and used to gently remove small pieces of glass which remain after the glass has been scored and broken. They are normally supplied with one straight jaw and one curved making them combination grozing and breaking pliers.
Use as breaking pliers
When used as breaking pliers the flat side should be up and the nose of the jaws almost touching the score line. The breaking pressure should be down and slightly to the side to bend and pull the piece away from the main piece of glass.
Use as grozers
When used a grozers – to gently wear away some small part of glass - the curved jaw should be up. The plier jaws should be used slightly open, and a downward motion of the plier does a “rasping” of the glass edges, taking away small bits of glass. With experience, a lot of glass can be removed quickly shaping the glass with a fair degree of precision. The edge can then be tidied by a grinder if required.
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