Evercraft Hand Tools 21 Piece Screwdriver Set Sizes: Slotted with Hex Bolster - 3/16" x 3", 1/4" x 4", 5/16" x 6" Slotted with no Hex Bolster - 5/32" x 4", 1/4" x 1-1/2" Phillips with Hex Bolster - #1 x 3", #2 x 4", #3 x 6" Phillips with no Hex Bolster - #0 x 3", @2 x 1-1/2" 1/4" Bit Driver and 10 Piece Bit Set