Knipex four mandrel crimping pliers for turned contacts knipex 97 52 65 a these four mandrel crimping pliers from knipex have been designed for crimping turned contacts equipped with a host of rich features including the gauge to check the basic setting chrome vanadium electric steel in special quality oil hardened table for calculating the settings pliers in a plastic case with foam insert and high operation comfort thanks to handy shape knipex 97 52 65 a four mandrel crimping plier