Corundum Bur 3,5MM

Corundum bits are used for grinding and treating natural nails. They are softer than ceramic, carbide or diamond cutters.
Their lifespan is shorter than ceramic and metal cutters, but it is almost impossible to do any damage with them.

You can use disinfectants and heat treatment.

The material does not cause irritation or allergies. The structure is malleable, but the particles are very sharp, so the nozzle does not heat up the treatment surface much.