How to Choose a Nail Drill/E-File for Under $20: Understanding Torque and RPM

How to Choose a Nail Drill/E-File for Under $20: Understanding Torque and RPM

Have you ever found yourself frustrated with a nail drill that just doesn't seem to do the job, even at high speeds? It's a common issue, especially when dealing with harder surfaces like acrylic nails. No matter how fast you crank up the RPM, the bit still stops when it touches the nail surface. It's a maddening experience that can leave you feeling like you're putting in all the effort for minimal results.

What's likely happening in these situations is that the nail drill lacks sufficient torque. Torque is the rotational force that enables the drill to effectively file or cut through nails. Without enough torque, even the highest RPM won't deliver the desired outcome.

What is RPM?
Let's talk about RPM for a moment. RPM, or revolutions per minute, is a measure of the speed at which the drill bit rotates. While RPM is important, it's only part of the equation. For natural nails, a lower RPM of around 7,000 to 15,000 is typically sufficient. However, for tougher materials like hard gel or acrylic nails, you'll want a machine with a higher RPM, ideally in the range of 25,000 to 35,000.

What is torque?
But here's the key: RPM alone isn't enough. You also need to consider torque. Torque, often measured in grams per centimeter (, is what gives the drill the power to tackle different nail conditions effectively.

So, why should you consider HALMAI when choosing a nail drill or e-file? Our product offers superior torque compared to others in its price range. For example, while a typical 20,000 RPM product might offer of torque, HALMAI provides a hefty This means it can handle a wider range of nail conditions with ease, all while remaining budget-friendly.

But that's not all. HALMAI goes beyond just providing adequate torque and RPM. We've also included a variety of accessories to cater to different nail treatments, whether it's manicures, pedicures, or polishing. Plus, we offer a 12-month after-sales service to ensure that any issues you encounter are promptly addressed, minimizing any disruptions to your nail care routine.


In conclusion, when choosing a nail drill or e-file, don't just focus on RPM. Consider the torque as well. With the right balance of torque and RPM, you'll find that nail treatments become faster, more comfortable, and more effective. And with HALMAI, you can enjoy superior performance without breaking the bank.