This spark-detecting screwdriver is well-insulated to protect the user from electric shock. The screwdriver bar and handle are insulated with a highly non-conductive material. The screwdriver has a rigid tip that enables an electrician to sharpen or loosen electrical sockets and boards. This tip is highly conductive, and it helps to provide an accurate indication of electricity. The spark tester is manufactured from high-grade metal and plastic to ensure user safety and unit durability. The screw-driving tip is extremely rigid and enables it to deliver rapid torque to the user for easy fastening.