How to learn your E-file is not suitable to work with artificial materials?

▪️The drill bit doesn’t take product off, but stops and draws into it.

▪️The e-file has unusual clamp, so you can not use common drill bits.

▪️The hangle makes loud noises during filing.

What e-file do we recommend to work with extensions?

▪️Strong 90, Strong 210, Strong 209, Strong 209A, Strong 207A.

What e-file do you use at the moment? Tell us about your experience