Application: burrs suitable for field stone,ceramics,glass,carbide,tile,marble,jewlry,rock etc. Highly recommended for crafts, hobbies, home repair, jewelry,lapidary use, modeling, and so much more. Easy to use: Cutting burr are 3/32 inch shank fits mini engraving pen,electric rotary tool, hand drill, pneumatic power tool. High quality sets, T shape burrs designed for most of rotary tools including for with 2.35mm(3/32Inch) collet. Material: This cutting burs are made of premium particles and metal, and cutting. more allows you to shape grind and finish your work with precison., Weight: 0.02866009406 pounds, Manufacturer: Tuidzljd