These CRL Corner 3/8" Nipper Glass Pliers cut a round corner into the square cut corner of 1/8" to 1/4" (3 to 6 mm) glass or mirror in one single "bite". When properly positioned, the hardened carbide steel jaws easily remove glass and leave a rounded edge. Light grinding with a belt machine is all that is needed to finish the corner. Automatic internal stops prevent the jaws from ever touching. A removable spring holds the jaws in the open position on this 10" (254 mm) tool so they are always ready-to-use. Great for desktops, shelving, partitions, displays and wherever else a round corner is needed. They are an exciting addition to any glaziers tool box.