Combination drill, countersink, and screwdriver sets, flat head screws flush or below work surface quickly and easily. Changes from drill/countersink to screwdriver without removing from drill chuck. Magnetic bit holder accepts 1/4" hex shank insert bits. Includes: Drill/drive system shaft, No. 6 and No. 8 drill countersink inserts, No. 1 and No. 2 Phillips insert bits. Plastic case. Carded.