This screwdriver set is manufactured with fine workmanship and precise modeling design for stable performance and durability. Adopts strong-magnetics motor, no-load speed up to 250rpm, with rotation-speed-protection function. When rotating with the all-metal gear-box, the concentricity of the batch head is <0.2mm, which effectively improves the working efficiency. Wide applications, suitable for repairs and maintenance of electronic products and precise instruments such as motorbike, cellphones, watches and home appliances. Features: Fine workmanship and beautiful modeling design for stable performance and durability. Ergonomic handle, with antislip bumpy texture design, comfortable grip, easy to use, help improving your working efficiency. Cordless design, built-in rechargeable battery, universal Type-C rechargeable interface, economic and eco-friendly. Adopts strong-magnetics motor, no-load speed up to 250rpm, with rotation-speed-protection function. When rotating with the all-metal gear-box, the concentricity of the batch head is <0.2mm, which effectively improves the working efficiency. 0.15Nm and 1.3Nm dual torque modes design, with speed protections function, efficient and reliable. Rotation direction adjustable design, you can adjust the rotation way easily by pressing the forward button and reverse button. When the screws are too tight or the screwdriver is lack of electricity, you can rotate the screwdriver manually. (Nonspecial situation, not recommended to use manual mode) Different specifications has different quantities of bits to satisfied with your all kinds of demands, and help you to deal with various repairing and fixing works. Strong magnetic-tips for easy taking off bits, and the replacement is quick and convenient. Suitable for apply to wood, metal and plastics material for tighting or loosing screws. Wide applications, suitable for repairs and maintenance of electronic products and precise instruments such as motorbike, cellphones, watches and home appliances. Three specifications avaible, you can choose 1pcs set, 12pcs set and 88pcs set according to your demands. 1pcs set: 1pcs screwdriver only (free gift: 1pcs USB cable, 1pcs bit). 12pcs set: 1pcs screwdriver and 11pcs different screwdriver bits (free gift: 1pcs USB cable, 1pcs bit). 88pcs set: 1pcs screwdriver, 19pcs different screwdriver bits, 66pcs screws, 1pcs USB cable, and 1pcs bit. Specifications: Name: Screwdriver and Drill Bits Set Battery: 1 * 3.6V, 1300mAh battery (included) Rotation speed: Max 250r/min Max torque force: 0.15Nm and 1.3Nm Item size: 175 * 23 * 23mm / 6.89 * 0.91 * 0.91in Package size: 1pcs set: 180 * 40 * 35mm / 7.09 * 1.57 * 1.38in 12pcs set: 180 * 40 * 35mm / 7.09 * 1.57 * 1.38in 88pcs set: 180 * 100 * 35mm / 7.09 * 3.94 * 1.38in Package weight: 1pcs set: 120g / 4.23ounce 12pcs set: 140g / 4.94ounce 88pcs set: 175g / 6.17ounce Packing List (1pcs set): 1 * Screwdriver 1 * Type-C Cable 1 * Bit OR Packing List (12pcs set): 1 * Screwdriver 1 * Type-C Cable 7 * Different Screwdriver Bits 4 * Extension Rod 1 * Magnetizer OR Packing List (88pcs set): 1 * Screwdriver 1 * Type-C Cable 10 * Different Screwdriver Bits 9 * Extension Rod 66 * Screws 1 * Magnetizer 1 * Accessory