This set of screwdriver bits features a 1/4 in hex shank and is designed for use with screw fastening inserts. The long bits are coated with black phosphate for enhanced durability. They are optimized for maximum performance and extreme durability, providing a strong grip that reduces wear and slippage during use.

• Delivers maximum performance and extreme durability.
• Provides up to 50X longer life when installing and removing drywall screws.
• Optimized tip design reduces wear, stripping, and slippage.
• MaxTorque Zone absorbs torque, creating less stress at the tip.
• Impact Strong™ design increases shank stability and durability.