Test extension back piercing needle tip probe kit Thin and hard stainless steel needle: extremely thin and hard design allows precise piercing of the cable sheath with minimal risk of insulation damage or splitting. Enables nondestructive entry during testing. Wide range of applications: suitable for auto maintenance, telecom testing, construction site testing, and other cable nondestructive testing tasks. Works with a variety of cable types and testing scenarios. Antibreakage soft handles and copper needles: built with durable, antibreakage soft handles and copper needles for improved sensitivity and easier manipulation during testing. Enhances control and accuracy while reducing wear on the probe. Compatible with banana plugs and post ties: designed to be compatible with standard banana plugs and post ties, offering convenient integration with multimeters and diverse test setups. Use scenarios Auto maintenance: probe wiring behind panels and within harnesses without cutting or damaging insulation. Ideal for verifying circuit continuity and locating faults in automotive electrical systems with a nondestructive approach. Telecommunications testing: examine and verify cabling routes and connections in telecom installations. Facilitates signal continuity checks and cable integrity assessments in complex network runs. Construction site testing: nondestructive inspection of wiring in installed systems and enclosures. Useful for onsite verification of connections and cable health in electrical and data installations. Key attributes Function: piercing needle allows nondestructive entry into cable sheath for testing without damage. Material: stainless steel needle with copper components and soft, durable handles. Size and form: extremely thin and hard needle designed for precision and control. Performance: sensitive, manipulable probes that maintain integrity during testing. Compatibility: works with banana plugs and post ties for versatile multimeter use.