This Technicians Ultra Driver offers 26 different bit tips and an innovative driver for convenient bit storage. The bits store inside of the driver handle with a spring loaded pop up cartridge, that releases with the push of a button for fast bit access. Each bit is made from hardened, tempered CVM tool steel that has been precision machined for an exact fit. Keep track of all of your important tool bits with the 26 in 1 Ultra Driver from Wiha Tools. Components: Ultra Driver with spring loaded bit cartridge. TORX: T6, T7, T8, T9, T10, T15, T20, T25, T27, T30 Phillips: #0, #1, #2, #3 PoziDriv: #1 & #2 Square: #0, #1, #2, #3 Slotted: 3.0, 4.0, 4.5, 5.5, 6.0, 6.5