This 3-piece magnetic screw clamp set is a practical must-have hand tool accessory for all repair, assembly and DIY work. This compact tool features dual functions of magnetization and demagnetization, you can easily magnetize or demagnetize screwdriver bits, drill bits and other metal hand tools in seconds. The magnetic clamp can firmly hold small screws, nails and metal parts, effectively prevent tiny screws from falling off and getting lost during maintenance work, greatly improve your work efficiency and convenience. It fits most common screwdriver heads and drill bit types for wide universal compatibility. Made of high quality sturdy impact resistant material, this magnetizer clamp set is durable for long term repeated use, compact and lightweight for easy grip and operation. Ergonomic size design allows you to carry it easily and store it in any tool box or work bag for convenient carry anywhere. Simple one step operation: just slide the screwdriver bit through the clamp to magnetize for strong magnetic attraction; cross the tool over the top to complete demagnetization. No extra power supply or complicated operation required, very friendly for beginners and professional workers alike. Widely applicable for electronic maintenance, household appliance repair, furniture assembly, home renovation, factory workshop work, construction and various craft DIY projects. Perfect tool gift for handymen, technicians, electricians, repair workers and DIY enthusiasts. Package includes 3 pieces magnetic screw clamp set only, screwdriver is not included.