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. Match speed to the grit you choose: moderate for coarse removal, steady for medium shaping and gentle for fine and extra fine finishing.
4. Use the wide body across the surface for reduction, then the tapered end along the sidewalls and cuticle area.
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.

• Using the taper for bulk work: The tapered end is for precision; use the wide body for bulk removal.
• Using one grit for every step: A single grit compromises either speed or finish; use coarser options for removal and finer options for refinement.
• 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: 7.0mm tapered mermaid super cut
• Grit: Coarse, Medium, Fine and Extra Fine
• Material: Tungsten carbide
• Shank size: 3/32" (fits most professional nail drills)
• Finish options: Gold
• Best for: Bulk reduction, refill shaping, contouring and surface refinement
• Care: Brush, clean and disinfect between clients; dry fully before storing
• Use: Professional nail services

How does a mermaid bit differ from a barrel?

A barrel has an even diameter, while the mermaid tapers from a wide body to a narrow end. That lets one bit handle both bulk removal and detail near the sidewalls.

Which grit option should I order first?

If you want one versatile bit, medium covers most everyday shaping and fills. Add coarse for heavy removals and fine or extra fine for refinement and finishing as your service menu grows.

How do I keep a tungsten carbide bit cutting well?

Brush out dust after every client, then clean, disinfect and dry the bit fully before storing. Packed debris in the flutes is the most common reason a carbide bit starts to feel dull.

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.