- Rotate the E-File Pen Twist Lock fully to the left until you hear a 'click' to unlock the chuck.
- Insert your chosen Drill Bit, leaving a small gap between the Drill Bit and the chuck so it can rotate smoothly.
- Rotate the Twist Lock fully to the right to secure it in place.
- Turn on your E-File Pen and start on Level 1, increasing speed only as your confidence and control improve. On natural nails, only use on level 1.
For more detailed guidance, view our E-File Pen User Guide or watch our E-File & Drill Bits tutorials on YouTube.











