Nail Drill Bit Cleaners! Little plastic devices that have a brush inside of them for you to roll the drill bits across the brush when you're finished using them. Add a little bit of 99% Isopropyl alcohol onto the drill bit to help get the residue off of them from removing all that acrylic and gel off of them nails! Clean them after each use to keep your drill bits in tip top shape! (No pun intended). Lol. Just get one...you'll be glad you did!
