1. Insert the bit fully into the handpiece and lock it; run it briefly at low speed to check it spins true.
2. Hold the handpiece like a pencil and position the bit at the correct angle to the nail surface.
3. Coarse grit removes product fast, so keep speed moderate and pressure light until you are confident with the bit.
4. Keep the barrel flat across the surface and guide the smooth top towards the cuticle area without pressing.
5. Keep the bit moving in smooth, light passes and never pause in one spot.
6. Refine with a finer bit or buffer before applying colour or top coat.
7. After the service, brush away debris, clean and disinfect the bit according to your local regulations, and dry it fully before storing.

• Relying on the smooth top as a guarantee: The smooth top reduces risk but does not replace care; keep light pressure near the skin.
• Finishing with the coarse grit: Coarse leaves visible scratches; always follow with a medium or fine bit before colour or top coat.
• Pausing in one spot: Holding the bit still concentrates friction and heat; keep it moving in smooth passes.
• Pressing too hard: Pressure creates heat and discomfort; use light contact and let the grit do the work.
• Skipping bit cleaning: Packed debris dulls the bit and is unhygienic; brush, clean and disinfect after every client.

• Bit type: Large barrel smooth top
• Grit: Coarse
• Material: Ceramic
• Shank size: 3/32" (fits most professional nail drills)
• Finish options: White, Pink
• Best for: Fast debulking, shortening and reshaping thicker enhancement material
• Care: Brush, clean and disinfect between clients; dry fully before storing
• Use: Professional nail services

How is a smooth top different from a chamfered edge?

A smooth top has no grit on the end of the barrel, so it does not file when it touches the skin or cuticle area. A chamfer softens the edge but is still abrasive, so the smooth top offers more protection.

Is coarse grit too aggressive for a regular fill?

For a routine fill with little growth, coarse can remove more than you need; it is best for heavy grow-out, shortening or full product reduction. Many technicians debulk with coarse, then switch to medium or fine to refine the shape.

What is the difference between a ceramic and a carbide bit?

Ceramic bits are lightweight and non-porous, which makes them easy to clean and a popular choice for smooth filing. Carbide bits cut with sharp flutes and are often preferred for fast removal; many technicians keep both and choose by service.

My client feels heat during filing. What should I change?

Heat means friction is building in one place, so lower the speed, lighten your pressure and keep the bit moving. Lifting off the nail briefly between passes also lets the surface cool.

How do I know when the bit needs replacing?

If you need more pressure or more passes than usual to get the same result, the bit is worn or clogged. Clean it thoroughly first; if performance does not return, replace it.