Set contains 27 sizes of interchangeable tips: slotted and Phillips screwdrivers, hex drivers, open-end wrenches, and nutdrivers, all made of hardened and tempered plated steel. Complete with plastic fold-up case. Contains 1 chuck-type knurled handle with swivel top and 1 each of the following tool tips: slotted screwdriver blades - 0.025", 0.040", 0.055", 0.070", 0.080", and 0.100"; Phillips screwdriver blades - #0, #1; hex driver blades - 0.028", 0.035", 0.050", 0.062", 0.078", and 0.093"; offset open end wrenches blades - 5/64", 3/32", 7/64", 1/8", 5/32", 3/16", 1/4", and 5/16"; 3" extension; nutdriver blades - 5/64", 3/32", 7/64", 1/8", and 5/32".