The Tapered Barrel Diamond Prep Bit features a medium grit and a slim flat-topped surface that makes it the perfect tool for prepping the surface of the nail for maximum nail enhancement adhesion. This gentle diamond bit removes debri without damaging the nail, and the flat-top surface allows you to get close to the cuticle area without hurting your client's skin.
More info:

Diamond Bit
Medium Grit
Standard shank size 3/32" (fits all professional nail e-files)