The 40,000 RPM cordless nail drill is a compact electric file designed to handle thick acrylics and builder gels while remaining portable and easy to hold. Its high-speed motor, long-lasting battery and an included accessory set make it suitable for use at home, in a salon, or on the go.
What this device delivers
Motor and removal power
This unit uses a carbon brush motor rated at 40,000 RPM. The high rotational speed helps grind and remove acrylic and builder products more quickly than lower-speed tools, letting you debulk or refine enhancements with fewer passes.
Battery and charging
Power comes from a 4,000 mAh internal battery that supports extended use—advertised as up to 10 hours per charge. Recharging takes about 3.5 hours via the Type-C port, which allows charging from power banks, laptops, or other USB-C sources for more flexibility between appointments.
Controls and display
An easy-to-read LCD shows key settings: speed, rotation direction and remaining battery life. Controls let you adjust speed and toggle rotation direction, which helps when switching between filing directions or when using specific bits that perform better clockwise or counterclockwise.
Form factor and handling
The drill is shaped like a pen to promote a comfortable grip for prolonged use. Its lightweight, portable design is intended for travel and mobile nail services, or for technicians who prefer a slimmer handpiece profile.
Kit contents
- 3 ceramic bits: Cone, Cylinder, Needle
- 6 metal nail drill bits
- 5 polishing bits
- 26 sanding bands
Practical use guidance
Choosing speed and direction
Start at a lower RPM when first working on natural nail or thin overlays, then increase speed for heavier acrylic or builder product removal. Use the direction control to match your dominant filing motion and to reduce chatter when changing hands or working on different nail surfaces.
Matching bits to tasks
- Ceramic cone or cylinder: Good for shaping and refining product near the free edge.
- Needle-shaped ceramic: Useful for precision around sidewalls or underneath the nail.
- Metal bits: Typically used for faster debulking when combined with higher speeds.
- Polishing bits and sanding bands: Finish and smooth surfaces before buffing or applying top coat.
Charging and runtime tips
Charge the tool fully before a long session to make the most of the advertised run time. The USB-C input allows topping up between clients from common charging sources, which is convenient for mobile nail techs.
If you want an alternative with a higher advertised maximum speed, consider the ONAIL 50,000 RPM drill: ONAIL 50,000 RPM drill
Key features in context
- High RPM motor — Speeds up removal and reshaping tasks on thick product.
- Large battery — Extended runtime suitable for multiple sets before recharging.
- Type-C charging — Modern charging standard for convenience and compatibility.
- Clear LCD — Real-time feedback on settings and battery life to avoid surprises mid-service.
- Comprehensive bit set — Provides a range of surfaces and shapes for common salon procedures.
Limitations and suitability
What it suits best
This cordless drill is presented as suited for removing acrylics and handling thick builder nails. Its portability and pen-like shape make it a good match for hobbyists, beginners, or mobile technicians who need a compact, rechargeable device.
What to consider
While the high top speed supports fast material removal, cordless operation means total runtime depends on battery condition and usage patterns. As with any e-file, choose the correct bit and speed for the task to avoid unnecessary stress on the bit, the motor, or the natural nail.
Safety and maintenance notes
- Use appropriate pressure—light, controlled contact reduces heat and vibration.
- Keep bits clean and replace sanding bands as needed for consistent results.
- Monitor battery level via the display and recharge before performance drops.
- Follow general nail safety practices when removing product to protect the natural nail plate.
Conclusion
In summary, this pen-shaped cordless e-file combines a high-speed 40,000 RPM carbon brush motor, a 4,000 mAh battery offering long runtime, Type-C charging, and a clear LCD for simple control. The included set of ceramic and metal bits, polishing heads and sanding bands gives a wide range of options for acrylic and builder nail work. It is positioned as a portable, ergonomic solution for both at-home users and salon professionals seeking a rechargeable tool.
Listed price: USD 37.99; prices may change.