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"FROST" The Ultimate Tapered Barrel - 4mm - Fine

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"The Ultimate Tapered Barrel" - 4mm

Our brand new diamond bit range for the Ultimate user. 

Our new range with cooling grooves making them last 1.5 times as long, premium finish giving them featherlight soft touch for the client but with ultimate performance. 

This tapered barrel piece is the perfect shape and size for removing pterygium, lifting the nail fold and reducing cracks & Fissures of the foot.  It also great for reducing calluses as its length covers larger areas.

  • Diamond Bit 
  • 100% Tungsten Steel
  • Cuticle Bit 
  • Tapered Barrel shape 
  • 4mm 
  • Cooling grooves
  • Medium Grade 
  • Suitable for Manicure & Pedicure 
  • Step 1 piece for cuticles 
  • Also suitable for E-Pedi, callus & fissure reduction
  • Perfect for separating the skin from the nail plate 
  • Standard shaft width of 3/32" 
  • Fits all E-file Machines 

The bit must be cleaned periodically to remain sharp by following the manufacturer's instructions. E-file bits usually last 2-3 months but this can vary dependent on how busy you are. 


  • Use warm soapy water to remove the dust and product debris from within the grits flutes and teeth. 
  • Once the bit is fully clean you can use your preferred sterilising method. 
  • We suggest using our "Willow Spray & Go!" system
  • If soaking in Barbicide please only steep for the recommended time, over-steeping can dull your drill bits. 
  • Once sterilised, dry the pieces and store in your Willow Container 
  • Alternatively, after cleaning your pieces with warm soapy water you can use a UV sterilising cabinet. 

How do I know I need a new e-file bit? 

If the bit you are using originally took 1-2 swipes along the nail to penetrate the product and now is taking 2,3+ swipes to penetrate, it's now time for a new bit. You may also be taking longer, or you may be starting to feel more body wear and tear because you are having to work harder to penetrate the product. 

All e-file bits are also available to purchase separately. 

"FROST" The Ultimate Tapered Barrel - 4mm - Fine