Backpin and probe safely without damaging insulation or wiring, enabling nondestructive diagnostics in tight spaces. Fine tip design that can slide past weather pack seals, allowing access to connectors for probing and electrical measurement without disassembly. Designed for electronic engineers, enthusiasts, and tasks; a reliable tool for circuit testing and measurement. Provides accurate measurements across a wide range of applications, from small electronics to laboratory settings. Key attributes Function: backpin and probe wires, perform electrical measurements with precision. Compatibility: suitable for automotive diagnostics and weather pack connectors, as well as general electronic testing. Size and tip: fine tip engineered for probing in tight spaces and through small gaps. Performance: delivers accurate, repeatable measurements across diverse applications. Applications and use scenarios Automotive diagnostics: backpin wires in weather pack connectors to test sensors and control modules without removing seals or damaging components. Electronics development and testing: probe signal paths on small circuit boards and harnesses during development, debugging, and validation. Laboratory research and repairs: perform precise measurements in tight or compact assemblies, enabling quick verification of electrical behavior and continuity.