Practical cost-effective design that delivers reliable performance. The unit can be quickly removed to expose the puncture tip for sharpening, extending the tool’s life. Piercing clamps enable applying exactly the pressure required to pierce insulation on cables of various types and sizes, giving you reliable access to conductors for testing. Red and black color-coded cylinders allow rapid circuit identification, reducing setup time and errors. The test clip features an Inline-Retention function. Once attached to the conductors, you can detach the test leads from the clips to test at another location, improving workflow. Use scenarios: 1) Automotive electrical diagnostics: pierce insulation on multiple wires and move testing leads to a centralized meter. 2) Electrical panel troubleshooting: quickly identify and test circuits with color-coded indicators. 3) Field cable verification during installation: access conductors in-situ and perform remote testing without re-clamping.