STRONG210+105L Electric Grinder, Stable, High Speed, Low Noise, High Power35000RPM Strong 210 105L 65W Nail Drills Manicure Machine Pedicure Electric File Bits Nails Art Equipment Nail TreatmentTRAUS 105L Precision manufacturingSpecificationsMain part1.Rated volage :110V-120V/60HZ,220V-240V /50HZ?Please set the voltage before using the machine?2.Power Inpute: 65W3.Out voltage:DC0-32V4.Rated Speed:35000RPM(Max)Package Include:1x Main Machine;1x Handpiece;1x Foot W witch;1x Handpiece Support1x User Manua(English)1xbagPlease tun off the switch when you do not use the unit.1 .Do not work in a dangerous place. Do not use the control box in a humid place.ac2 .Transport and storage conditions:Temperature: 10-40?Humidity: 30-75% RHAtmospheric Pressure:700 hPa to 1060 hPa3. Our handpiece & foot pedal should be only used for our confrol unit4.Bur*Dimensions of the bur. 2.35mm (SO7785-2 TYPE2)*Minimum iting length of bur of bur :10mm*When locked in the chuck, the maximum projection length of should be less than 35mm Use a bur that conform to the ISO standardsAvoid using a rusty or bent bur that may cause excessive wear of bearings.Keep safe speed, and precautions recommended by bur manufacturer5.Check for any troubles, inctuding vibration of bur,at low speed, and then start high speed6.Operate the speed control dial in control box softly7.use a fuse of 220V/230V/2A for control box(or110V?8.Turn off the power in order to change the bur.9.Be coreful not to drop the handpiece as it may be damaged or broken.in case that it is drooped, check if the bur is bent or if any excessive heat is generated while carefully operating it10.if ary problem occurs in handpiece, use after repaining..11.Do not tumon the power of control box while the collet chuck of handpiece open (Short circuit of the motor may be coused)12 .Make sure that the switch is off before putting the power plug in the socket, in order to avoid on unexpected injury due to sudden start13.A circuit breaker is provided to protect the motor. it is actuated when there on overload which the motor cannot stand. Work within a range of load which it is not actuated14.Do not open the chuck while operating15.keep the handpiece with setting a bur to the collet chuck affer opperation16.Do not put the handpiece down befare it stops completely17.Besre to pul out the power cord before moving the control box18.use the specified voltage19.use accessories suitable for this product20.For recommended speed in various applications, follow the manufacture& 39;s instructions21.Wear proper profecive cothes and equipment ;including a dust mask and safety goggles. Use a proper suction unit and a ventilator.22.keep the workplace clean. Debris may cause on accident"