Stubby Low Profile Half cut Drivers . Steel, With Satin Chrome Finish . 1/4" Sq., Drives With Ball Check . 20mm Long, Half cut Drivers . Half cut Drivers Are 30% Stronger . 10 Piece hex drivers 5/64" through 3/8" . 10 Piece hex drivers 2mm through 10mm . 2 Pieces, P1 & P2 Phillip's drivers . 2 Pieces, 1/4" & 3/8" Blade drivers . 8 Piece XZN drivers XZN4 through XZN12 . 10 Piece TORX drivers T8 through T50 . 8 Piece TORX PLUS drivers IP15 through IP50