Magnetic Nut Setter.

Function: These are power tool bits used to drive hex-head screws, nuts, and bolts.Magnetic Grip: Each bit contains a built-in magnet that securely holds the fastener in place, preventing it from falling off during installation.Design: They typically feature a 1/4-inch quick-change hex shank, making them compatible with most cordless and electric drivers.Applications: These tools are widely used in construction (such as metal roofing and cladding), automotive repair, and woodworking.