A bit is the term used for the abrasive part of the electric file or e-file. There are many different types and levels of abrasiveness. Each has a specific role in the use of the e-file. They are also available for left and right handed people. They are classed as a metal tool and should be hygienically cleaned as with all reusable metal tools.
E-File Bit
![variety of e-file bits](https://nailknowledge.org/wp-content/uploads/2021/04/E-file-bits-1.jpg)