This Screw Driver set lets you perform most electrical, electronic and mechanical repair jobs without looking for other instruments. This is a handy tool to have in the house if you like doing small repair and maintenance jobs by yourself. Tester You can use this screwdriver as an electrical tester while performing electrical repair work to check if an electrical device, plug point or a wire is carrying current or not. This set comes with flat screwdriver tips that can be used for a wide range of tasks. They can be used for repairing devices and gadgets like calculators, computer accessories, laptops and other items commonly found in most homes.