Engineered for improved performance, these tough grip screwdriving bits are the model choice for getting the most out of your drills and impact drivers. The bits can FLEX™ as you work with the specially designed torsion zone that delivers longer bit life vs. Standard bits in high-torque applications. Designed for versatility and convenience, the 2 in. And longer bits are compatible with the ring magnet collar, providing magnetic fastener retention on demand.