49 in 1 tiny screwdriver set with a wide range of drill bits, trusted by professional repair technicians and home repair enthusiasts. An essential repair tool kit. - Material and durability: The screw handle is aluminum alloy and the drill bits are steel, offering high hardness, good toughness, and high temperature resistance for long service life. - Portable and organized: All small drill bits are stored in a box about 15.8x6.7x1.7 cm (6.22x2.64x0.67 in); the double sided design keeps everything compact and easy to access. - Design features: Built in bearing allows smoother rotation; the diamond pattern provides an ergonomic grip. Both the storage box and the handle have magnetized areas to better attract and hold screwdriver heads. - Safety note: Not suitable for children aged 13 and under. - Use scenarios: Electronics repair and gadget maintenance; small appliance and general household repairs; furniture assembly and light DIY tasks.