4.2V Multi-function Quick-change Mini Screwdriver USB Charging Speed Regulation Engraving Polishing Electromechanical Gr

Description Product name Multifunctional electric screwdriverRated voltage range 3 7V 5VModel LSP 4 2vPower Type Rechargeable Lithium Battery TechnologyIdle speed 200 rpmFeatures Intelligent control chip do not get hot or burn the machine Metal rear wall collet the collet is precise and durable concentricity high speed stable and durable built in collet Button switch to avoid unintentional touch during work affecting normal work Fast cooling system built in cooling fan effectively dissipate the heat of the generator Special bit for screwing stainless steel long service life strong and wear resistant high concentricityGrinding head installation steps 1 Press the clamp lock to make the clamp in a locked state2 Tighten the collet clockwise to usePackage Included 1 X Multifunctional Electric Screwdriver12 X AccessoriesDetail Pictures