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 , 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.88/12/1pcs set 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.Cordle design, built-in rechargeable battery, universal USB 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 , 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 preing 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 SetBattery: 1 * 3.6V, 1300mAh battery(included)Rotation speed: Max 250r/minMax torque: 0.15Nm and 1.3NmItem size: 175 * 23 * 23mm / 6.89 * 0.91 * 0.91inPackage size:1pcs set: 180 * 40 * 35mm / 7.09 * 1.57 * 1.38in12pcs set: 180 * 40 * 35mm / 7.09 * 1.57 * 1.38in88pcs set: 180 * 100 * 35mm / 7.09 * 3.94 * 1.38inPackage weight:1pcs set: 120g / 4.23ounce12pcs set: 140g / 4.94ounce88pcs set: 175g / 6.17ouncePacking List (1pcs set):1 * Screwdriver1 * USB Cable1 * BitORPacking List (12pcs set):1 * Screwdriver1 * USB Cable7 * Different Screwdriver Bits4 * Extension Rod1 * MagnetizerORPacking List (88pcs set):1 * Screwdriver1 * USB Cable10 * Different Screwdriver Bits9 * Extension Rod66 * Screws1 * Magnetizer1 * Acceory 20/2pcs setSpecifications:Name: Screwdriver and Drill Bits SetType: 2pcs set, 20pcs set (optional)Battery: 1 * 3.6V, 1300mAh battery (included)Rated voltage: DC3.6VNo-load speed: Max 200r/minMax torque: 5NmPackage size:200 * 160 * 100mm / 7.87 * 6.30 * 3.94inPackage weight:2pcs set: 682g / 1.50lb20pcs set: 1060g / 2.34lbPacking List (2pcs set):1 * Screwdriver1 * USB Cable2 * BitORPacking List (20pcs set):1 * Screwdriver1 * USB Cable18 * Different Screwdriver Bits1 * Bit Connection Rod1 * Cardan Shaft SetA/Specifications:Type: set A, set B(optional)Torque: max. 3N.mWorking voltage: 3.7-4.2VNo-load speed: 220r/minMain color: blackRated power: 4WBattery: 3.7V, 1200mAhItem size: 175 * 43 * 43mm / 6.9 * 1.7 * 1.7inPackage size: 225 * 70 * 55mm / 8.9 * 2.8 * 2.2inPackage weight:Set A: 210g / 7.4ounceSet B:197g / 6.9ouncePacking List:Set A:1 * Electric Screwdriver1 * USB Cable1 * User Manual10 * Screwdriver BitSet B:1 * Electric Screwdriver1 * USB Cable1 * User Manual1 * Screwdriver Bit Many Questions about Drop