Professional mandrel bits designed for quick sanding band changes and reliable hold during nail filing and shaping. Compatible with most electric nail drills and manicure machines, these two mandrels provide a durable, precise attachment for small sanding bands used on natural and artificial nails. Key benefits Fast and secure sanding band installation thanks to an internal tension spring design that keeps bands tight and prevents slipping or falling off. Broad compatibility with a 2.35 mm (3/32 inch) shank that fits most electric nail polishers and manicure machines. Exact fit for small sanding bands with a 3.1 mm (1/8 inch) mandrel head for controlled removal, polishing, and grinding. Durable construction in tungsten carbide for corrosion resistance and stable performance. Includes two mandrels so you have a spare for continuous work or different sanding bands. Features Quantity: 2 mandrel bits Mandrel head diameter: 3.1 mm (1/8 inch) for most 3.1 mm small sanding bands Shank diameter: 2.35 mm (3/32 inch) compatible with standard electric nail drills Spring design: each mandrel includes four spring plates to secure sanding bands firmly Material: tungsten carbide, resistant to rust and wear How to use Step 1. Insert the mandrel shank into the electric nail drill chuck. Step 2. Slide the sanding band onto the mandrel head until it is held by the spring plates. Step 3. Turn on the drill and begin filing, shaping, or polishing. Typical applications Athome manicures and pedicures for shaping and smoothing natural nails and nail enhancements. Salon and spa use for acrylic and gel nail removal, surface refining, and finishing work. Professional nail art preparation where quick sanding band changes and secure attachment are needed. What you get 2 x small mandrel bits with slim 3.1 mm heads suitable for small sanding bands, and 2.35 mm shanks for wide compatibility. These mandrel bits offer a simple, reliable solution for anyone who needs a secure, easy to use attachment for small sanding bands in both home and professional nail care settings.