1pc Cable Clips Piercing Test Clip 4mm Banana Seat Heavy-Duty Insulation Piercing Probe Test Clip with Back Probe Wire Piercing Probe Clip

4mm female banana socket Probe Clip Fit for cables less than Dia 4mm; No need to cut out the cable, no damage to the cable; Puncture and clamp the cable by thread, free your hands; Can be used to connect weak electricity test leads under 36V; 4mm standard female banana seat at the end, you can connect to most of test and diagnostic devices