This DeWalt FlexTorq Screwdriving Bit Set includes 37 pieces designed for demanding applications. Featuring FlexTorq torsion zones, these bits absorb high impact forces and transfer them into the screw head for optimal driving without rounding. The set includes bits with a precise CNC machined tip for a secure fit, reducing cam-out. A magnetic screw-lock sleeve and magnetic drive guide minimize drops and reduce wobble during use. The bits are supplied in a DeWalt ToughCase, compatible with TSTAK systems, designed for secure storage with a clear lid for easy identification and twist-up retainers for easy bit removal. The set contains a variety of screwdriver bits including PH1, PH2, PH3, PZ1, PZ2, PZ3, SL4-6, T20, T25, and T25 security bits in different lengths (25mm, 50mm, 85mm), along with a compact torsion magnetic drive guide and an aluminum magnetic sleeve. The optimized torsion zone maximizes bit life and turning force, offering greater bit strength and durability.