Electrical tools set for automotive and electrical system work - Electrical tools: Copper probe provides reliable conductivity, corrosion resistant, and accurate measurement. Built for durability in electrical system work. - 12 volt test light: Compact, lightweight and pen sized for easy one handed use. Delivers precise control and comfortable handling for automotive testing. - Test light automotive: Versatile 12 volt tester to check continuity, test voltage polarity, and inspect lights, motors, and bad contacts. Helps identify short circuits with clear results. - Fuse tester automotive kit: Widely used to test voltage polarity and continuity, check lamps and electric motors, and locate short circuits. Functions as a light tester to simplify diagnostics. Use scenarios - Vehicle fuse and power check: Inspect a blown fuse or dim light. Use the fuse tester to verify polarity and continuity, then use the 12 volt test light to confirm power availability at the circuit. - Wiring and harness diagnostics: In case of intermittent operation or dead circuits, use the test light to confirm voltage presence and continuity, helping locate bad contacts or faulty connections quickly. - Lamp and motor verification: Check headlamps, indicators, or small motors for proper operation. Use the test light to verify polarity and circuit integrity, and follow short circuits with the fuse tester as needed.