Xiaomi screwdriver kit use a computer numerical control process for high accuracy (Tolerance: ±0.01mm), fit well to tiny screws of your electronics, including Philips, Flathead, Torx, Security Torx, Pentalobe, Triangle, Hexagons, Tri-point, Spanner meet ANSI Standard. MI repair screwdriver 24 high-precision screwdriver bits , a total of 9 categories for quartz watches, Cameras, radios, computers, mobile phones, unmanned aerial vehicles and other conventional small household appliances to meet the needs of most daily repair.