Specification Brand : Luo ke BulletPoint1 : Made of premium Swiss-milled Vanadium steel for long life and accuracy BulletPoint2 : 24 pieces jwewlry burs includes assorted shapes and sizes meet your different need BulletPoint3 : Specific 3/32'' shank fits electric drill, hanging mills, bench mills,electric grinders, rotary tool, etc BulletPoint4 : Suitable for silver, jewelry, olive core, beads, ivory, bone, precious soft metal and more BulletPoint5 : Package contents: 24 pieces 3/32 inch shank assorted shape lapidary setting burs ItemName : Luo ke 24 Pcs 3/32'' Shank Assorted Burr Sets,Includes Ball Burs, Stone Setting Bits, Round Cup Burr, 90º Hart Burs and Bud Bur Kits for Jewelry Marking ItemPackageDimensions_Height : 0.5 inches ItemPackageDimensions_Length : 4 inches ItemPackageDimensions_Width : 3 inches ItemTypeKeyword : cutting-burrs Manufacturer : Luo ke Material : Vanadium Steel PartNumber : Jewelry Burs ProductDescription : Made of premium tungsten steel with high hardness, hard-wearing and anti-rust. Can be used in hanging mills, bench mills,electric grinders, rotary tool, etc. for carving and grinding of silver, jewelry, wood, walnut and more, recommended for olive core, beads, ivory, wood, bone, precious soft metal , etc.