Penultimate Fine – Black DLC Coating - Lifespan up to 8 months
Pickup available at Willow Academy HQ
Usually ready in 24 hours
The industry-standard refining bit for controlled, precision product removal.
Designed for the e-file removal of gel polish, thinly applied builder gel or the refinement of applied Hard Gel & Acrylic.
You can manoeuvre close to the edge of the product & side walls due to its round safety head.
Grit Level: Fine
Function: Controlled product reduction & Refining
Shape: Safety Dome topped barrel
Cut Pattern: Cross-cut carbide
Material: Tungsten Carbide
Coating: Black DLC Coating
Rotation: Suitable for left & right-handed use
Recommended Speed: 22, 000 rpm - 25,000 rpm for removals. 15,000 rpm for refining product
Pressure: Light, controlled pressure only
Sanitisation: Suitable for professional cleaning, disinfection & sterilisation. Autoclave Safe.
Traditionally engineered for those less confident making it ideal for E-file beginners as well as for experienced users due being recognised for its classic shape & soft contours. This bit removes & reduces product whilst allowing for a smooth, even surface without aggressive cutting.
Removes & refines product with controlled reduction
Supports less confident E-file technicians
Creates a smoother finish compared to speciality carbides
Gel Polish Removal with standard base coat
Gel Polish Removal with Rubber Base
Builder Gel Infills
Refining of Hard Gel & Acrylic
Unlike traditional “fine” bits that can feel inconsistent or slow, the Penultimate Fine is designed to deliver:
Balanced cutting performance – with even spade-like flute formations
Low vibration design for smoother handling
Professional-level precision for high-standard services
This is the perfect bit for an e-file beginner & e-file professionals. It’s a refinement tool for trained professionals who understand controlled e-file work.
Black DLC Coating – Carbon Coated & Maximum Lifespan.
This version features a Black Carbon coating designed to:
Last 4 times as long as a standard E-file Bit Coating
Lifespan up to 8 months (use & storage dependant)
Protected in Carbon our Diamond like coating
Coating best for: Technicians looking for maximum life & cost per use. Those who wish to order less frequently.
Qualified E-File Technicians
Beginner to Advanced skill level
Techs performing gel polish removals and gel infills
Not suitable for:
Untrained users without e-file education.
Working at 22,000–25,000 RPM
Use light, controlled pressure
Work from cuticle area to free edge in long strips, not back and forth
Keep the bit moving to avoid heat concentration
Not suitable for:
Filing the natural nail, use on product only.
For best results, use as part of a structured removal system:
Step 1: Penultimate Fine – Removal/Infills
Step 2: Refine the remaining product using a Sanding band in 240 or 180 grit
Step 3: Follow with cuticle work
The Penultimate Fine should not be used to remove full bulk.
Its role is controlled light removal, refinement, and precision. If you love the shape but wish to use it for debulking try out Penny - Medium or Poppy - Coarse option.
Pickup available, Usually ready in 24 hours
Unit 2 Norman Business Park, 61 Thorby Avenue
March PE15 0AR
United Kingdom
We continually test, measure and compare all our e-file bits so you can trust them to perform when you need them most. The Willow Guarantee means that we will refund or replace any e-file bit that doesn't do its job.
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