This metric 13-in-one multi-bit screwdriver features magnetic quick-change technology. It comes with a Phillips #1 bit, a Phillips #2 bit, a square #1 bit, a square #2 bit, a loop maker, a Phillips #1 bit, a Phillips #2 bit, a slotted 1/4 x 4 inch bit, a large standard Schrader bit, a Schrader 5/16 inch bit, and a slotted 3/16 x 6-inch bit. This seven-piece screwdriver is made of chrome-plated steel. It has a 1/4 inch drive with a 3-1/2 inch shank and is 7.5 inches in total length.