Victoria Vynn drill bits are a professional tools for nail styling. The goal of the nail stylist is the customer's satisfaction with a carefully executed manicure and pedicure service. The drill bits have a universal shaank diameter of 2.35mm and are therefore suitable for "twist and lock" and podiatry nail drill machines. They can be disinfected in aqueous solutions and sterilisedd in the utoclave. The colour of the stripe(s) on the shank indicates the grit or sharpness of the drill bit; purple- coarse, blue-medium, red-fine. Each drill bit was packed in an elegant black and white plastic package. DRILL BIT Carbide Volcano / 7mm The carbide drill bit in the shape of a rounded cone made f sintered carbide, an extremely durable raw material. Intended for removing hybrid, gel and acrylic-gel masses. Perfect for beginners and experienced stylists. Shape: rounded coneUse: for gel and acrylic-gel and acrylic massesHead size: 7mm / 12mmLevel of sharpness: medium-coarse Recommended rpm: 15,000 - 20,000 RPM*For sterilisation and disinfectionFor whom? For right-handed users *Recommended speed to set the drill to work properly and ensure the safty of the stylist and client.