The dewalt dt70548t 3in impact rated bit tip holder comes with 3 bits that are specially designed to have an increased life the optimized torsion zone allows the bit to flex rather than break even when used in extreme applications the contoured area of the tip flexes with the torque of the impact driver includes 1 x 25mm phillips bit ph21 x 25mm poziriv bit pz21 x 25mm torx bit t20