The Diamond Polisher - Extra Fine | 4.8mm | Finishing E-file Bit – Silver
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A Willow original. The Diamond Polisher was created specifically for Step 3 — the finishing stage of prep. Used with cuticle oil, its extra-fine 4.8mm ball polishes and smooths the surrounding skin, eliminates hangnails, and delivers that high-end, perfected finish that separates a good manicure from a great one.
This is not an exfoliation bit. It is a finishing and polishing tool — it must always be used with cuticle oil.
Suitable for both left-handed and right-handed use.
WHAT IT DOES
Polishes the surrounding skin for a smooth, refined finish
Eliminates hangnails and rough skin edges
Nourishes and refines simultaneously when used with cuticle oil
Elevates the overall look of the manicure to a high-end result
Completes prep by taking skin from clean → perfected
IMPORTANT: MUST BE USED WITH CUTICLE OIL
Apply cuticle oil to the skin before or during use
The oil allows the bit to glide, polish, and nourish — without causing heat or irritation
Do not use dry — this is a polishing bit, not a prep bit
PRODUCT SPECS
Grit
Extra Fine
Shape
Ball
Head Size
4.8mm ball
Material
Diamond-coated Tungsten Steel
Speed
15,000–20,000 RPM
Rotation
Left & right-handed
Shaft
3/32" universal fit
Lifespan
Approx. 2–3 months
HOW TO USE
Use at Step 3 of prep — the cuticle oil stage
Work at 15,000–20,000 RPM (higher than prep bits)
Apply cuticle oil first, then glide lightly over the cuticle and surrounding skin
Very light pressure only — let the oil and bit do the work
Do not use on the nail plate
SYSTEM PAIRING
Step 1: Flame, Pip, Anastasia, or Mist — lift & separate cuticle
