Pack of 3 Knipex 86 09 300 V01 Protective Jaws. The Knipex Protective Jaws enable the use of a pliers wrench on designer fittings and other highly sensitive materials, thanks to the soft, smooth gripping surfaces. They can also be used on chrome if the jaws of the pliers wrench have been damaged due to improper or rough use. Easy to fit and firmly hold in place. 300mm