Drilax 30 pcs Titanium Coated Diamond Burs Set Assorted Shapes Cone Cylindrical Round Bit Bur Kit Jewelry Beach Sea Glass Shells Gemstones Lapidary 1/8″ Shaft HIGH QUALITY TITANIUM COATED Diamond Rotary Tools Burr Set. 30 pieces – EASY Storage CaseASSORTED SHAPES and SIZES Including: 1mm – 2mm – 3mm Cylinders – Ball – Tapered – Cones – Needle Points – Flat TopsSUITABLE for detail work, cutting, engraving, carving, touch-up, drilling and finishing. GREAT for Jewelry Design, Lapidary Work, Hobby, Crafting, Modeling, Repairs, Drilling and Shaping Gemstones, Seashells, Sea GlassAll burrs bits have 1/8 inch shank – Overall Length is 1 3/4 inch. Compatible with most rotary tools such as Dremel and Wen DIAMOND TITANIUM COATED BURS – 30 PCS SET in CASE with 1/8″ SHANKMEDIUM GRIT: 120 to 150 PREMIUM QUALITY DIAMOND BURR BITS EXTRA TITANIUM COATING GREAT DEAL LAPIDARY BITS ROTARY POINTS YOU CAN USE WITH WEN – CRAFTSMAN – FOREDOM – DREMEL – ROTARY TOOLS- These are trademarked brand names of respective owners, our rotary tool set is DRILAX brand. Diamond Titanium Coated Burrs SHANK: 1/8″ QUANTITY : 30 pieces in CASEApplications: Drilling, Carving, Grinding, Cleaning, and Etching on Ceramics, Glass, Semi-Precious Stones, Gold & Silver, Wood, Jade and other hard materials. Use Water as Coolant – Better Tool Life SHAPES: Rounds – Cylinders – Tapered – Pear – ConeBurs Lengths: 1-3/4 inch