Performance Tool W80004 4 Piece Mini Stubby Screwdriver Set Phillips sizes: #1 and #2 Slotted sizes: 3/16 and 1/4". Chrome vanadium steel shafts. Great for confined or hard to reach places. Lifetime Warranty Great for confined or hard to reach places Chrome vanadium shafts Phillips #1 & #2 Slotted 3/16" & 1/4"