DNTSS516 Diablo 5/16 in x 1-7/8 in Magnetic Nut Setter Diablo's range of magnetic nut setters delivers maximum performance and extreme durability in driving hex nuts or self-tapping screws. A high-strength, permanent magnet provides a secure, anti-wobble grip when fastening screws and nuts into a variety of applications. Torque Resistant Design absorbs torque for less stress at the tip. This range is Impact Strong™, delivering increased shank stability and durability in cordless and corded impact and drill drivers. Extreme durability and impact resistance in driving hex nuts and self-tapping screws Permanent magnet eliminates wobbling by securely gripping screws and hex nuts Torque Resistant Design for less stress on the tip Impact Strong™ increases shank stability and durability Rust protection coating for superior wear and corrosion resistance Laser engraved bit type and size for easy identification Optimized heat treatment process strengthens the bit for impact resistance and stability Maximum stability in in cordless and corded impact and drill drivers LENGTH : 1-7/8 in SHANK : 1/4 in Hex NUTSETTER SIZE : 5/16 in