Type : Screwdriver SetCertification : RoHSPower Source : BatteryOrigin : CN(Origin)Usage : Home DIYMax. Torque : 3.5N/MRated Voltage : 3.6VNo-Load Speed : 1200rpmRated Input Power : 50WFrequency : 250No-Load Speed: : 1200rpmElectric screwdriver: : Battery screwdriverScrewdriver electric: : Cordless screwdriverPrecision screwdriver set: : Bits for screwdriverHex screwdriver: : Phillips screwdriverDrill screwdriver: : Power screwdriverMini electric screwdriver: : Automatic screwdriverRechargeable Battery Screwdriver: : Screwdiver set1. Material: pure copper motor2. Function Maintenance, disassembly, drilling3. Parameters Maximum torque: 3.5Nm Voltage: 4.2v Speed: 250 (rpm) Rotation: Two-way Maximum screw diameter: M4 Drive shaft/Chuck: Chuck Input power: 50w Battery: 18650/1800mah Charging time: 3-5hours