Amazon.com.au:Customer reviews: SPEEDWOX Glass Running Pliers with Rubber Tips for Glass Cutting 8 Inches Key Fob Pliers with Curved Jaws Heavy Duty for Stained Glass Work Durable Mosaics Breaking Tool
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I am going to send these back as they just don't cut glass at all. I took them along the the glass class I run today and not one of my 19 students could break any glass. I stupidly ordered another pair before trying the fist pair out so needless to say they will be going back too. They are described as flat curved jaws both top and bottom jaws are flat so there is no way they would cut glass