Set 3 Pc Cobra® Pliers Set (7", 10", & 12") 00 20 06 US2Adjustment at the touch of a button directly on the workpiece Fine adjustment for optimum adaptation to different size workpieces and a comfortable gripping position Self locking on pipes and nuts: no slipping off the workpiece and low handforce required Gripping surfaces with special hardened teeth, teeth hardness (approx. 61 HRC): low wear and reliable gripping Box joint design: high stability because of double guide Reliable catching of the hinge