Machined to our exact specifications, this CRL Drop Jaw 8-1/2" Glass Plier's precision ground jaws support the glass, and at the same time, develop powerful leverage under slight pressure to cleanly sever glass along cut line. The long 8-1/2" (216 mm) length will feel balanced and comfortable in your hand, even when breaking out 1/2" (12 mm) thick glass. It is preferred by many professional glaziers.