Feature:1. Helps remove old dead skin and calluses on the soles of the feet, and make foot skin smooth and delicate.2. Quickly and effectively exfoliate skin, does not damage the normal skin of the foot, bring you convenience.3. Excellent stainless steel material, the grinding head will not rust, and has good durability and cutting performance.4. Strong hardness, high temperature resistance, resistance, long‑lasting wear resistance, easy to clean.5. 2.35mm universal handle diameter, specially designed for most nail drill machine, easy to install.How to Use:Specification:Condition: 100% Brand NewItem Type: Nail Drill BitMaterial: Stainless SteelCharacteristics: High temperature resistance, resistance, strong hardness, long-lasting wear resistance, easy to clean.Uses: Exfoliating dead skin on the feet, manicuring, removing hangnail, exfoliating cuticles, calluses, etc.Size Chart:Model Handle Length Handle Width Grinding Head LengthGrinding Head Width B3F 39mm / 1.54in 2.35mm / 0.1in 22mm / 0.9in 15mm / 0.6in B3C 38mm / 1.5in 2.35mm / 0.1in 22mm / 0.9in 15mm / 0.6in Package List:1 x Nail Drill Bit1 x Storage BoxNote:1. Please allow slight error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.