Steel Dragon Tools 36" Magnetic Roller Sweeper Magnet Tool with Release Lever Steel Dragon Tools 36-inch magnetic sweeper. Ideal for quickly picking up nails, screws, tacks, bolts, wires, paper clips, magnetic metal debris. Magnetic sweeper will work indoors or outdoors, on flat surfaces or on lawns. Feature 5-1/2-inch rubber wheels. Features one-pull release lever to clear debris.