Electric Nail Drill Bit Color Silver Grit Fine Universal 332235mm stainless steel shank perfectly suits for most electric nail drill machine Prefessional Nail Drill Bits The nail drill bits sets are made of superior tungsten carbide material with excellent heat dissipation for faster cooling during highspeed and longtime rotation Sharp Durable 5 in 1 Nail Drill Bit The Twoway rotation function designed to make the bits cut smoothly in clockwise and counterclockwise directions used for cleaning and prepping shaping and shortening cuticle work under the nail and backfills MultiPurpose In a well strength pointed and cutting performance perfect for acrylic nails also be work on nail file shaping and cutting nails grinding etc SalonHome Tool Perfect gift for DIY lovers or nail salon It is best clean and sanitize your carbide bits with water and for a longlasting use