Why You Need a Quality Electric File: A Professional Guide for Nail Technicians

By the Nove Academy Team | Nove Salon & Esthetics Wholesale

If you spend your day doing fills, shaping enhancements, and removing old product, your electric file quickly becomes one of your most-used tools. The right one should feel comfortable in your hand and give you control without making you fight your equipment.

So what makes an electric file worth investing in? Let’s look at the features that actually matter at the nail desk, the options at Nove, and the bits and accessories that help bring your setup together.

The quick answer: An electric nail file, or e-file, uses a rotating bit to reduce enhancement product and refine nails. Choose a machine for handpiece comfort, adjustable speed, suitable torque, and the work you do—not maximum RPM alone. Match each bit to its task and follow appropriate training.

Start with How You Work

Before comparing machines, think about a normal day at your station. Are you mostly refining gel enhancements? Doing frequent removals? Moving between stations? Those answers will help you choose more than the biggest number on the box.

• A fixed nail station: a tabletop controller keeps your controls and handpiece holder in one place.
• A mobile setup: a rechargeable electric file gives you more freedom to move. Check charging time and battery needs.
• Back-to-back appointments: pay attention to handpiece weight, grip, balance, and where the cord sits.

Pro Tip from Nove Academy: If you can, hold the handpiece before choosing your machine. A tool can have great specifications and still feel awkward in your hand. Comfort and control are worth taking seriously.

RPM and Torque — What Do Those Numbers Mean?

For example, the Saeshin Strong B135 and Brillian B350D are listed at up to 40,000 RPM and 3 N·cm of torque. The portable Strong B170 is listed at 30,000 RPM with the same torque figure. The maximum speed alone doesn’t tell you which will suit you best.

Pro Tip from Nove Academy: If your bit is struggling to remove product, don’t solve it by pressing harder. Check the bit, its condition, your settings, and your technique. Let the right tool do the work.

Electric Files to Explore at Nove

Saeshin Strong B170 Portable Electric File — Black

Want a rechargeable option with a brushless handpiece? The B170 offers up to 30,000 RPM, 3 N·cm of torque, forward/reverse control, and a speed and battery display. It lists up to 10 hours of battery life and an approximately two-hour charge time, though runtime depends on how you use it.

A good one to compare if: portability and a brushless motor are high on your list.

Saeshin Strong THUMB-D Portable Electric File — Pink

The THUMB-D pairs a compact rechargeable controller with a digital RPM display and a coreless brushed motor. It runs up to 30,000 RPM and lists an approximately 1.5-hour charge time.

A good one to compare if: you want portable equipment, an easy-to-read speed setting, and a pink controller for your station.

Saeshin Strong B135 Electric File — 40K

This tabletop option comes with a white H350 handpiece, a brushed DC motor, up to 40,000 RPM, and 3 N·cm of torque. Hand or foot control selection, overload protection, and built-in handpiece and bit holders make it worth considering for a dedicated station.

Saeshin Brillian B350D Electric File — 40K

The Brillian pairs a pink controller and pink H350 handpiece with a digital speed display. It offers up to 40,000 RPM, 3 N·cm of torque, a brushed DC motor, overload protection, and storage for eight bits. Bits are purchased separately.

A good one to compare if: you like a tabletop setup with digital controls and a place for your go-to bits.

Roselisa Rose-M Elite Electric File

The Rose-M Elite has adjustable speed and direction, an LED screen, a comfortable handpiece grip, and a non-slip underside. It includes six bits, a charging cable, and a manual, giving you a starting selection of accessories.

Take a moment to learn what each supplied bit is intended for. Having several in the box is useful, but they don’t all do the same job.

Pro Tip from Nove Academy: Check what comes with your chosen machine before ordering. Bits, holders, foot controls, and charging accessories vary. It’s also worth asking about warranty coverage and servicing before your electric file becomes part of your everyday routine.

Nove’s Top Three Bestselling U-Tools Nail Bits

A good electric file needs the right bit. These three U-Tools options led our Equipment Bestsellers selection when this guide was checked on October 5, 2026.

1. U-Tools Diamond Rounded Flame Bit — Medium

A slim diamond bit for trained detail work around the cuticle area and sidewalls. Its 1.4 × 8 mm head gives you a narrow profile for precise preparation.

2. U-Tools Diamond Rounded Cylinder Bit — Medium

This bit has a cylindrical working surface and rounded end, with a 2.5 × 10 mm head. It gives you a broader profile for controlled preparation and refinement, following your training and the bit’s instructions.

3. U-Tools Carbide Large Flame Bit — Coarse

A carbide option for reducing acrylic and gel enhancement product. Think bulk removal before you move to a suitable finishing tool. This is not an all-purpose natural-nail prep bit.

All three list a 3/32-inch shank. Confirm that it fits your handpiece, and check the bit’s intended use, direction, and speed limits.

Prefer a tapered barrel for enhancement removal? You can also compare the U-Tools Carbide Tapered Barrel Bit — Medium, listed for acrylic and gel product removal.

Pro Tip from Nove Academy: Choose the bit for the job you’re doing right now. A removal bit, a detail bit, and a finishing tool each have their place. Changing tools is better than asking one bit to do everything.

Round Out Your Filing Station

More on dust collection and room ventilation:

Read our nail ventilation guide

Good Habits Make the Biggest Difference

1. Learn the technique first. Get appropriate electric-file training and practise controlled movements before working on clients.
2. Check your equipment. Secure the bit as directed. Stop if you notice unusual vibration, noise, or heat.
3. Choose the setting for the task. Use your training and the machine and bit instructions. Maximum RPM is not your everyday target.
4. Keep your touch controlled. Don’t force the bit or stay in one spot. Stop immediately if your client feels heat or discomfort.
5. Look after the whole setup. Reprocess reusable bits correctly, discard single-use items after use, and maintain your handpiece and collector as directed.

Pro Tip from Nove Academy: Ask your client to tell you straight away if anything feels hot or uncomfortable. They should never feel they need to sit through discomfort while you finish an area.

A Few Questions We Can Help With

What is the difference between an electric file and a nail drill?

In professional nail services, “electric file,” “e-file,” and “nail drill” commonly refer to the same rotating-bit tool. This guide uses electric file. It does not cure gel or collect filing dust; those jobs need separate equipment.

What speed should I use on an electric nail file?

There is no single RPM for every bit or service. Use the machine and bit instructions together with your training, and account for the product you are working on. A machine’s maximum speed is a capacity rating, not a recommended working speed.

Is a 40,000 RPM electric file better than a 30,000 RPM one?

Not automatically. Compare the complete setup: torque, handpiece, controls, portability, and support. The best fit is the one that suits your work and that you can use confidently.

Will a more expensive machine prevent nail damage?

No machine can replace good technique. Your bit choice, pressure, positioning, and training matter just as much as your equipment.

Should I choose portable or tabletop?

Think about where you work. If you stay at one station, tabletop may suit you beautifully. If you move around, a rechargeable model may be more convenient. Just plan your charging routine.

Ready to Find Your Next Electric File?

Start with the work you do most, then choose a comfortable machine and a small selection of bits that cover those tasks well. You don’t need every accessory at once.

Explore the options above or ask the Nove team to help you compare them. When you’re ready for the finishing stage, our gel top coat guide will help you choose the right final touch.

From the Nove Academy Team at Nove Wholesale, a professional nail and beauty supplier in Saskatoon, Saskatchewan, serving Canadian beauty professionals. Explore more Nove Academy product and technique guides.