Knipex four mandrel crimping pliers for turned contacts knipex 97 52 65 dg a for crimping turned contactsfour mandrel crimping for top quality crimping connectionsmandrel gauge to check the basic settingrepetitive high crimping quality due to integral lock self releasing mechanismoptimum transmission of force due to highly effective lever action for fatigue reduced operationhigh operation comfort thanks to handy shapechrome vanadium electric steel in special quality oil hardenedwith digit