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"This bit is amazing for around the cuticle and exfoliation. I have found it’s a bit harsher than my medium grits from other brands. Not used every set as I have others I prefer but this one is still great."


The Diamond Round Barrel Drill Bit is a dual-purpose bit designed for safe cuticle work and exfoliation of surrounding skin. The rounded head shape offers comfort and control for cuticle prep, while the barrel surface is also ideal for smoothing rough, callused skin along the sides of the nail or gently refining the nail plate.
| Material | Diamond Coated |
| Function | Cuticle prep, exfoliating callused skin, and smoothing nail plate |
| Grit Options | Medium (Fine also available) |
| Shaft Size | 3/32" (Standard) |
| Suitable For | Both Right and Left Handed Use |
| Lifespan | Approx. 3 months with proper care |
| Recommended Speed | 9–14 RPM with the HONA ProFile e-file |
Purpose: Designed for gentle but effective cuticle prep, exfoliating hardened sidewall skin, and light work over the nail plate.
Speed: Use at 9–14 RPM with the HONA ProFile e-file.
How to Use:
Clean and disinfect the Diamond Round Barrel Drill Bit after each use using professional-grade cleaning solutions. Store in a dry, dust-free container to prolong its lifespan. With proper care, it will remain effective for up to 3 months of regular use.
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Overall rating: 5.0 / 5 from 2 reviews.
Review topics: [].
"This bit is amazing for around the cuticle and exfoliation. I have found it’s a bit harsher than my medium grits from other brands. Not used every set as I have others I prefer but this one is still great."
"Perfect for exfoliating tougher skin on the sidewalls"