Fits Well with Most Nail Drill: Universal 3/32" (2.35mm) tungsten steel shank perfectly suits most professional electric nail drills on the market. Please note that to prevent breaking, the nail drill bits cannot be dropped. Professional Pedicure Bits: Made of the hardest YG6X carbide tungsten material, this high-precision machining nail bit comes with excellent heat dissipation, low vibration, low noise, and hard-wearing features. MelodySusie ball shape pedicure bit for nail drill are practical tools for nail salons, beauty salons, manicure schools,etc. Suitable for use at home, regularly remove dead skin, calluses, cracked skin on the feet to keep the skin healthy and smooth. Right Hand Use: With one direction working direction, this carbide nail drill bit only works for right-hand use, also suitable for both left-handed and right-handed use if your nail drill machine has forward and reverse functions. 5.0MM Ball Shape Bit: Remove forefoot calluses and local calluses which is safe and convenient .Wet grinding is recommended. Suggest RPM: 15,000-30,000 RPM. Professional pedicure bit for callus and chiropody treatment. Ball Shape Pedicure Bits | Color: Rose Gold | Grit: Extra Coarse | Shank Size: 3/32'' | Right Hand Use.