KLEPS 60 4 mm safety clamp test probe. Terminal connector: Ø 4 mm, total length: 148 mm, clamping range: Ø 4 mm, jaw opening: 3.5 mm Clamp-type test probe with grip jaws and flexible shaft. The special shape of the grip jaws allows pins and wires up to a maximum Ø 4 mm to be clamped without slipping. The Ø 4 mm socket connector means that sprung Ø 4 mm plugs are can be connected. The additional screw connection means that plugs and cables up to a maximum Ø 2 mm can be connected. Socket material: brass; grip jaws also nickel-plated.