Having a set of small screwdrivers is vital for working with electronics. This kit has 6 screwdrivers: 3 x Phillips (#1, #0, #00) and 3 x Flat (2.4mm, 1.8mm, 1.4mm). These sizes will open up most consumer electronics you come across. Each screwdriver snaps into place inside the included plastic carrying case and features a rotating cap, allowing for precise control. The tips are made of durable AISI 8660 Cr-Mo-V Alloy Steel and will stand up to years of use.