Dewalt dt79202bqz small tough case metal drillscrew driving sets dewalt dt7922b qz this 29 piece screwdriving set from dewalt is supplied in a tough storage case and contains drill and screwdriver bits designed to withstand worksite conditions included in the 29 piece set are the following pieces 8x 25mm phillips bits ph1 ph2x6 ph38x 25mm pozidriv bits pz1 pz2x6 pz36x 25mm torx bits t10 t15 t20 t25 t30 and t402x 25mm slotted bits 55 and 8mm1x 50mm phillips bit ph21x 50mm