30Pcs Diamond Drilling Bits ø1mm(20)/ø2mm(5)/ø3mm(5) 1/8" Shank Compatible with Dremel Rotary Tools for Sea Glass Beach Stone Rock Shell Ceramic Porcelain Jewelry Making Grinding Cutting

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About This Premium Diamond Coated Tips - Features high-quality diamond particles for efficient grinding and drilling through beach sea glass, stone, rock, ceramic, and seashells. D urable steel construction ensures long-lasting performance. 1/8"(3mm)shank compatible with Dremel rotary tool 1/8"(3.175mm) collect.Ideal for precision drilling, engraving, and deburring in jewelry making, crafts, and DIY projects. Versatile, 1mm, 2mm, 3mm tip sizes - Perfect for detailed work on small stones, sea glass, and delicate materials. Great for enlarging holes or creating precise openings in beads and pendants. Water Cooling Recommended - Works best when used with water (submerged or with a drip) to prevent overheating and extend bit life. Avoid dry drilling for optimal results. 30-Piece Value Pack - Affordable bulk set with a storage case. Replace worn bits easily—ideal for hobbyists and professionals who need reliable, cost-effective grinding tools. Overview Material : Diamond Cutting Diameter : 1mm2mm3mm Millimeters Finish Type : Diamond Coating Shank Type : Round Cutting Angle String : 1 Degrees Show more