Knipex front loading self adjusting crimping pliers for end sleeves ferrules knipex 97 53 08 these front loading knipex crimping pliers for end sleeves are self adjusting to the desired end sleeve size they fit all twin ferrules within the application range the crimping pressure is already precisely calibrated but it can be readjusted enables end sleeves up to 25mm to be loaded from the side knipex 97 53 08 self adjusting crimping pliers for end sleeves ferrules