Self-Adjusting Crimping Pliers for wire ferrules For wire ferrules up to 16 mm². Adjusts automatically to the wire ferrule size for precise and quick crimping. Crimping of wire ferrules according to DIN 46228 parts 1+4. UL approval in conjunction with KNIPEX wire ferrules 97 99 330 - 399. Repetitive, high crimping quality due to ratchet mechanism (unloc