The Katie Barnes Nail Prep Barrel Bit is a flat-top, cylinder-shaped diamond cuticle bit designed for clean, controlled natural nail prep. Its medium grit finish lets you push back the cuticle, remove dead skin, and remove the shine from the nail plate.
Available in Extra Small, Small, Medium, and Large, each size gives you the ideal level of access depending on nail size, cuticle space, and the precision you need.
Use at 5,000–12,000 RPM:
5,000 RPM for gentle, safe natural nail prep
Up to 12,000 RPM for efficient cuticle work and exfoliation
Pushes back the cuticle cleanly
Removes non-living tissue and cuticle skin
Removes shine from the natural nail plate
Flat top gives smooth, even control
Cylinder shape reaches the full cuticle band area
Medium grit ensures effective but comfortable prep
Compatible with all 3/32” e-files.
Size Guide
XS: Micro precision for very tight cuticles.
S: Detail work for small - medium nails.
M: The universal everyday size.
L: Fast coverage for larger nails and open cuticle areas.
Free UK shipping upgradable to next day at checkout.
All international orders shipped via courier.