Keep your screws and bits where you need them: right on your tool. The FastCap PowerMag for Screw Gun features a powerful neodymium magnet designed to hold screws, bits, and small hardware securely while you work. With ultra-strong VHB foam tape on the back, it sticks firmly to the side of your screw gun so you can work faster, with fewer interruptions. No more digging in your pockets or dropping hardware mid-project, the PowerMag keeps it all within reach.