This is an easy-off mandrel bit used to slide a mini sanding band over the mandrel bit to polish or file nails. But not just any mandrel bit, this is a special mandrel bit with an easy-off function and a special blue coating. It's always a hassle to remove the sanding band from the mandrel after use. This mandrel has an easy-off function, making it easier to remove a sanding band. The blue coating ensures longer durability and is highly resistant to cleaning agents. The size of the mandrel bit is a universal 3/32", which is the size for, for example, the Marathon 3 Electric Nail File or any other electric nail file. This mandrel drill bit is made of high-quality hard steel with a blue coating. The design of the mandrel drill bit is special; this design keeps the mini sanding band firmly in place and prevents it from slipping! The advantage of working with nail mini sanding bands is the speed at which you can replace them. Furthermore, mini sanding bands are available in different grit variations. In short, a fast, inexpensive solution for filing gel nails and acrylic nails without causing any elbow, wrist, or hand strain. The mandrel drill bit can be used in the manicure or pedicure world, dentistry, or a medical environment.