Patented reinforcing edge minimizes stress breakage Undercut tongue and groove design assures, no slip jaw action PermaLock™ fastener eliminates nut and bolt failures Laser-hardened teeth provide longer life Grips have a Santoprene™ core with TPR-rubber overmold which composites for durability, comfort, and secure grip10" Code blue, tongue and groove plier, straight jaw, 2 cap. Channellock® uses high carbon C1080 steel for superior performance on the job, and an electronic coating for ultimate rust prevention. This has a unique design, with its SAFE-T-STOP, the lower jaw combines with expanded reinforcing rib to prevent handles from contacting each other. Also the right angle teeth grip in all directions for maximum bite and minimum wear. New Code Blue designation on handles makes it easier than ever to choose the right tool for the job. There"s no sacrifice here, you have the durability and the comfort!