These rotary tool sanding drill bits are designed to fit in most rotary tools and are excellent for a range of sanding applications. The sanding drill bits are made of and strong and durable grinding wheel and metal material, which has an excellent texture and you can use them with confidence. Features -Color:Pink -Material:Grinding wheel, metal -Size:4.30X0.60X0.60cm/1.69X0.24X0.24in -Size:4.70X0.85X0.85cm/1.85X0.33X0.33in -Size:4.80X1.00X1.00cm/1.89X0.39X0.39in - These bits are versatile and can be used for a range of sanding tasks, including polishing, grinding, and shaping. - The rotary tool grinding stone head provides excellent polishing results with uniform grit, can remove rust from metal castings. - The grinding stone set is an excellent choice for woodworking projects, a effective option in . - The grinding stone head feature with abrasion resistance, sharp abrasive grains, less dust when polishing. - The grinding stones are excellent for sanding delicate items, a great choice for professionals and DIYers. Package list: 15 x sanding drill bits 6mm 15 x sanding drill bits 8.5mm 15 x sanding drill bits 10mm