Nail Drill Burs 5 in 1 Viva's 5 in 1 Carbide nail drill bit is made of pure, durable,high-strength tungsten steel material and designed for high performance and long service life. Viva's Carbide Bit use to remove acrylic, hard gel, crystal nail, extending nail from the nail quickly and efficiently. Product Features * Appr.Weight 10g * Material: Tungsten Carbide * Shank Size: 3/32 1/8 * Flute Size: 6mm * Grit: 2X Coarse * Coating: Original - Recommended * Package: Individually * Pure, durable, strong tungsten steel material * Fast and more efficient filing and removing acrylic * 3/32’’or 1/8’’ shank diameter can fit on your nail drill * High concentricity * Excellent heat dissipation and no clogging * Full grits for your options * No clogging Follow these steps to clean and sanitize your drill bits: Step 1 Clean your carbide bits to remove dust from the surface by washing with a small cleaning brush, alcohol and warm water.