Mydentity Perfectly balanced for ultra smooth cutting action. The geometry of the bit allows it to cut smoothly in either clockwise or counter-clockwise directions, making them perfect for both right or left handed technicians. The K-Star Small Barrel Fine grit Carbide Bit is used for surface work, shortening acrylic and gel product, backfill cutting and c-curves. The only difference between a large-barrel bit and a small-barrel bit if the circumference of the bit, allowing for nail techs to choose their preference. Made for e-file machines with a 3/32" collet closing mechanism. Available in Fine, Medium, Coarse, X-Coarse and XX-Coarse.