Each screwdriver head of the precision screwdriver set is made of tool steel, with a hardness of up to 60HRC and long-lasting reliability. The 17mm long screw neck allows you to come into contact with screws that other precision screwdrivers cannot reach. This set of Mini screwdrivers will help you easily complete your work and extend the tool life [ Multi purpose ] Includes 36 4mm screwdriver heads, available in 10 types -for Philips, Torx Security, Star, Pentalobe, Flat Head, Hex, Triangle, Tripoint, Spanner, ICS, as well as fine tweezers and metal drills for your daily maintenance work, such as computers, iPhones, PCs, electronic devices, laptops, phones, Macs, RC, PS4, PS5, Nintendo switches, Xboxes, game controllers and consoles, rings, And more technological equipment The convenient one click release mechanism of the cartridge case makes it easy to access your precision drill bit. This computer kit features a magnetic safety box that can hold all drill bits in place and label the type for quick identification and easy organization. This small and lightweight plastic case can easily fit into your pocket and tool kit, so you can carry your computer tool kit with you wherever you go This laptop screwdriver kit provides an integrated aluminum alloy screwdriver that is durable and has a built-in strong magnet, allowing for quick replacement of drill bits and better fixation of fasteners. The screwdriver of the iPhone repair kit also features a knurled handle for better torque application, as well as a freely rotating end cover for quick completion of work type: 39 in 1 Screwdriver tools / 50 in 1 Screwdriver tools Material: tool steel colour: grey Package Contents: 1 x screwdriver kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm