Set Includes: (12) 6-Lobe Star Plus Bit Sockets: ATD-13712 - TP8 1/4" Drive; ATD-13713 - TP10 1/4" Drive; ATD-13714 - TP15 1/4" Drive; ATD-13715 - TP20 1/4" Drive; ATD-13716 - TP25 1/4" Drive; ATD-13717 - TP27 1/4" Drive; ATD-13718 - TP30 1/4" Drive; ATD-13719 - TP40 3/8" Drive; ATD-13720 - TP45 3/8" Drive; ATD-13721 - TP50 3/8" Drive; ATD-13722 - TP55 3/8" Drive; ATD-13723 - TP60 1/2" Drive