Hi Agent1!
Okay...When I started with the drill I used a dremel. Yes, a shop tool. Then I graduated from the shop tool, to a Genie. Lastly, I use the Kupa. Love it BTW. Doesn't matter what kind of tool you use, but practice makes perfect. A few golden rules to remember when using any kind of efile. Never, NEVER use on the natural nail. I simply can not stress that enough.
Always keep the file in movement. Side to side. It's hard at first, I remeber I always wanted to use it cuticle to free edge. Don't. That simply doesn't give you a nice rounded nail. It leaves flat spots in the nail that we as nail techs may not see till way later on.
Since the file is in constant movement, heat should not happen. Heat comes from friction of leaving that file in one spot. Also, you don't have to use the fastes setting on the drill. Since you are just starting, use a fairly slow setting. The slower it is, the less chance for heat. Once you have mastered your technique for manipulating the drill, then put your speed faster.
Cuticle work can be tricky. Try not to use a big bulky drill bit near the cuticle. You want to see the cuticle line and drill bit at all time. If you use a big bulky one, you may not see where the drill bit is touching your client at and that may lead to a nick. Use narrowed drill bit specifically for cuticle area. Sometimes you have to hold the clients hand kind of funny so you can see the cuticle area as you drill. But please never assume that the drill isn't touching her.
Drill bits, just trial and error with those. After mastering the drill, it wont take any time to figure out which drill bits you like and why. I love the 2 way carbide bits. Two way because it cuts the nail, in either direction. Left or right. So it cuts all the time. The I love sanding bands. I prefer the course casue it gets the job done fast, then I finish with the fine. Oh, also the carbides are great if you want less heat. They allow more air flow inbetween the nail and the bit.
Well, hope this has helped. Practice, practice, practice. If you have leary clients, one thing I always do to explain the it isnt the drill that causes the problems, its the tech, is put your setting on low speed, then touch your drill bit. Yes, that's right. Touch it with your hand. If low enough, it won't hurt you. That always cause my ladies to relax about the drill. Good luck to you!!!!!!