Dewalt impact torsion 2x pz2ph2t20t25 50mm and magnetic screwlock sleeve dewalt dt70537t qz this impact torsion from dewalt feature impact bits with a 15deg torsion zone that allows the screwdriver bit to flex rather than breaking while the full fit head prevents rounding of the screw head and cam out bit head slipping out of screw head due to the turning force the magnetic screwlock enables tasks to be completed quicker and easier reducing instances of dropped or lost screws d