Each screwdriver head is made of high-quality tool steel with hardness up to 60HRC for long-lasting reliability. The 17mm long screw neck allows access to screws other precision screwdrivers cannot reach. Includes 36 4mm screwdriver heads in 10 types (Torx Security, Star, Pentalobe, Flat Head, Hex, Triangle, Tripoint, Spanner, ICS), as well as fine tweezers and metal drills for daily maintenance work on computers, PCs, electronic devices, laptops, phones, RC, switches, Xboxes, game controllers, consoles and more technological equipment. The convenient one-click release mechanism of the case allows easy access to precision drill bits. The magnetic safety box holds all drill bits in place with labels for quick identification and organization. The small plastic case fits easily into pockets and tool kits for portability. The integrated aluminum alloy screwdriver is durable with a built-in strong magnet for quick bit replacement and better fastener fixation. It features a knurled handle for better torque application and a freely rotating end cover for quick work completion. Color: as shown. Package Contents: 1 x screwdriver kit (only the above package content, other products not included). Note: Light reflection and different displays may cause slight color difference; measurement allowed error is +/- 1-3cm.