'The Penultimate Bit" - Fine 

"The Penultimate Bit" in Fine grade comes in four colours:

Silver - coated in Nickel (2-3 months)

Gold - coated in Tin, making it last twice as long (4-6 months)

Purple - Specialty coatings, protecting them against oxidization and making the bit last twice as long. (4-6 months)

Black - Carbon like coating making them last 4 times as long (Lasts 8 months)

About the Penultimate Bit:

• Fine Grade
• Round Top Barrel
• Right handed & left handed piece
• Safety Bit Carbide
• The rounded smooth top allows you to cut close to the cuticle with confidence
• 100% Tungsten Steel
• FOR RIGHT HANDED & LEFT HANDED
• Fits all E-file Machines
• Standard shaft width of 3/32"
• Perfect for: Infills, smoothing, Gel Polish removal of or on Acrylic, Polygel, Acrygel & BIAB
• NON REFUNDABLE due to hygiene reasons

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

• AFTERCARE & CLEANING: 

• Use warm soapy water, our Spit-Spot-Bit-Pot and our Willow Brass Brush to remove the dust and product debris from within the grits, flutes and teeth. 
• Do not allow the bit to air dry!
• Once the bit is fully clean and dry you can use your preferred sterilising method. 
• We recommend our "Willow Spray & Go" system as the less time your bits spend immersed in solution, the better!
• Lay your E-file bits on a towel and evenly spray the Spray & Go over all of the bits.
• Roll the bits over and spray evenly again.
• If soaking in barbicide please only steep for the recommended time, over-steeping can dull your drill bits.
• Wait 2 mins and then dry all of your bits thoroughly by hand (do not leave to  air dry)
• Store in your bit case or bit book.
• How do I know I need a new drill 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 the product, 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.