Electric Screwdriver & Torque Electric Screwdriver & Precision Electric Screwdriver Screw:M2.0-5.0 Tapping Screw:ST2.0 - 4.0 Waterun-6500 Electric Screwdriver & Torque Electric Screwdriver & Precision Electric Screwdriver Waterun-6500 electric screwdriver is designed against over-voltage, over- ampere, and over-load. So it has a long service life. The special gears facilitate free selection ...