WHOLESALE 12 Piece Star Plus Bit Socket Set designed to minmize tool slippage and eliminate cam-out and damaging fastners. Include: 1/4"""" Drive sizes: TP8, TP10, TP15, TP20, TP25, TP27 and TP30; 3/8"""" Drive sizes: TP40, TP45, TP50 and TP55; 1/2"""" Drive sizes: TP60.Illinois Industrial Tool Professional series tools