Knipex Tools 97 52 37 Crimp Lever Pliers Preciforce For insulated and non-insulated end sleeves (ferrules) Five crimping positions, capacity 0.25-6 mm, AWG 23 - 10 Repetitive, high crimping quality due to precision dies and integral lock (self-releasing mechanism) Crimping pressure has been set precisely (calibrated) in the factory High transmission of force thanks to lever action for fatigue-reduced working