Application tips 1 After changing the nail bit please remember to slide back to lock the catch or the drill will not work 2 Press and hold for more than 5 seconds to turn the machine on and off 3 Green light sufficient battery Efile can be used as usual 4 Red light low battery less than 10 Efile can be used for 1520 mins and needs to be charged in time 5 While charging the charging port will turn red When the battery is fully charged it will turn green Multifunctional Nail Drill Kit With 5 kinds of professional metal bitsalso works with all kinds of 332 shank bitsyou can use this nail drill machine for allround grinding carving cutting polishing removing cuticle suitable for natural acrylic gel and dip powder nails Safe and Efficient Efile nail drill with 35 adjustable speeds 300016000rpm and support Forward Reverse directionchoose the appropriate speed and rotation for your needs Cordless RechargeCordless rechargeable nail drill compact and lightweightThere is no messy wire limit so that the control is more free to carry around and the use time can reach more than 3 hours after full charge What You Will Get The electric nail drill set comes with 9 interchangeable drill bits1 Dust Brush and TypeC charging cable to give your nails a salonworthy look beetles nail drill Provide 1 year warranty service if you have any questions about the sander please feel free to contact us