Durable copper construction: probe body and contact points are made from copper for reliable conductivity and long-lasting performance during repeated tests. Maintains cable integrity: sharp, thin piercing needles penetrate wire insulation cleanly so you can test vehicle or electronic wires without stripping or disconnecting them, reducing damage and preserving original wiring. Precision multimeter probes: designed for accurate contact with small terminals and conductor cores; ideal for diagnostic work where a steady, low-resistance connection matters. Works as a multimeter extension: compatible with standard multimeter leads and test setups to extend reach or convert leads into insulated, pierce-capable probes. Versatile and multifunctional: suitable for automotive repairs, electronic maintenance, and general electrical troubleshooting—one tool covers a broad range of test tasks. Easy, time-saving operation: eliminates the need to disassemble connectors or cut insulation to access signals, speeding up diagnostics while keeping wiring intact. Typical applications Automotive diagnostics: pierce ignition wires, sensor leads, speaker wires, or harnesses to measure voltage, continuity, or signal without disconnecting components. Electronics repair and maintenance: access PCB test points, wire-to-board connections, and tightly spaced terminals where standard probes struggle to make reliable contact. Field troubleshooting and installations: extend multimeter leads to reach recessed terminals in appliances, junction boxes, or engine compartments for quick on-site checks. Why choose this probe Preserves wiring and components by avoiding destructive access methods. Provides precise contact on small or hard-to-reach conductors. Built to last with conductive copper parts for consistent test results. Compatibility and use notes Designed to work with standard multimeter leads and test instruments that accept plug-in probe extensions. Intended for diagnostic testing; do not use on live high-voltage systems beyond the rated capability of your multimeter or test equipment.