This DeWalt FlexTorq Screwdriving Bit Set includes 33 pieces designed to withstand high impact forces, reducing failures when fixing large screws. The set features an optimized tip geometry for full fastener fitment and reduced cam-out, with a full-fit head that eliminates wobble and screw head rounding. A contoured torsion zone absorbs torque peaks, protecting the bit for extended life. It also includes a torsion zone drive guide with an extending sleeve for improved fastener stability and control. The set comes in a small, tough, connectable case that allows multiple sets to be stacked and locked together. Bits lock into place for user convenience and easy removal. Includes nut drivers and 25mm screwdriver bits. Brand: DeWalt. Model: DT70742T-QZ.