Knipex Self-Adjusting Crimping Pliers for crimping end sleeves (ferrules) in accordance with DIN 46228 Parts 1 + 4. Also suitable for all twin end sleeves (ferrules) up to 2 x 6mm² or 2 x AWG 8. Adjusts automatically to the desired size of end sleeve. An integral lock (with release mechanism) provides consistent crimping pressure. Whilst the ratchet mechanism (unlockable) allows for repetitive, high crimping quality.