[Tungsten carbide material]: The nail bit set is made of tungsten carbide metal. Colorful colors with exceptional strength, sharpness and durability. Professional shape and size design to meet the diverse needs of manicure, manicure, and nursing. High hardness, high temperature resistance, corrosion resistance. [Easy to Use]: With a universal shaft diameter of 2.35mm (3/32"), the professional electric nail files attachment fits most electric manicure clippers. It's perfect for professional manicists, experienced people, and beginners as hobbyists. [Less Dust and Less Heat]: The nail cutter head can be used to remove dead skin, barbs, pre-treat, polish, sharpen, polish, sculpt and remove nails. There is only a small amount of dust due to little friction and heat. [No Damage]: The manicure drill set is durable and has excellent performance when grinding gel nails without heat. Cuticle-tipped nails should be used without risk of injury. color: as show size: as show Package contents: 1 x cone bit. 1 x cylinder bit. 1 x needle bit. 1 x micro needle bit. 1 x flame bit. 1 x micro flame bit. 1 x ball bit. 1 x micro ball bit. 1 x silicone bit. 1 x brush bit.