General purpose drill countersink and drive set for use with electric drill drivers and screwdrivers ideal for hanging doors building flat pack furniture and general wood working and diy projects set includes quick flip drive and 3 double ended quick flip drill countersink and drive bits for 6 8 10 gauge screws hex drive quick chuck hex drive finger saver and 3 replacement drill bits for quick flip countersinks 7 x hex drive hss drill bits 15 2 25 3 35 4 and 5mm for wood and