The multi-function acrylic nail drill are widely used for manicuring, pedicuring, shaping, polishing, remove the nail jewelry, remove acrylic nail and gel nail, solve hangnail and calluses etc. This professional nail machine is widely available for beginners and experienced people, the home or nail art salon.</br></br>In order to extend the service life, it does not suggest to be recharged when using; portable and rechargeable design, compact size (5.5*3*1.2in) can be packed in a carry-on bag or hung on clothes, and it is the best choice for nail art with your friends nail art party.</br></br><b>HOW TO CHANGE BITS?</b></br>►To remove a bit, turn the chuck handle clockwise（left） in the direction of the arrow until it clicks to stop and pull out the bit.</br>►To mount bit a bit, make sure that the chuck is in open position, insert a bit all the way into the chuck, and turn the chuck handle clockwise in the opposite direction（Counterclockwise/ right） until it clicks to stop.</br></br><b>WHAT'S THE DIFFERENCE WITH ORDINARY NAIL DRILL MACHINE?</b></br>Professional imported ball bearings and a fast motor, 0-30000rpm adjustable speed.</br>Low Heat: Great aluminum body and self-contained heat emission hole for efficient heat dissipation.</br>Quiet & Safe: Smooth operation and low vibration; Handle has a safety lock(lock the bit, safe and compact).</br></br><b>KEY FEATURES:</b></br> Portable lightweight, easy to carry</br> Battery Display: 100%,75%,50%,25%</br> Rotary Speed: 0-30000RPM</br> Power: 30W</br> Support rated voltage 110V/220V double voltage for recharging.</br> Full recharge time: 2.5hours</br> Working time:8 hours</br> The size of nail drill bits: 3/32"</br> Set with handpiece cup holder</br> Portable with Hook, good for carry to manicure and pedicure</br> Battery Display: Charging in red,working in green</br> Battery Capacity:12.6V/2600mAH</br>