Diamond Grinding Bit Set, 30 Pieces – Assorted 120–150 Grit Rotary Tool Burs for Precision Jewelry Making, Engraving, Carving & DIY Craftwork, 2.35mm Shank

The Hanboost 30-Piece Diamond Grinding Bit Set provides a complete assortment of 120–150 grit diamond burrs designed for precision jewelry making, engraving, carving, and detailed DIY craftwork. Each burr is made from durable alloy steel and coated with tough diamond particles, delivering sharp, consistent cutting and superior wear resistance. With essential shapes such as ball, cone, cylinder, needle, and tapered, this set covers all standard carving and shaping needs. The universal 2.35mm (3/32") shank fits most rotary tools, ensuring stable rotation and smooth operation across a wide range of materials, including wood, metal, resin, stone, ABS, PVC, and plastics. Whether you're repairing jewelry, refining models, engraving stones, or crafting intricate designs, this diamond burr kit offers versatility, precision, and reliable performance for hobbyists and professionals alike.

• 30-Piece Fine Diamond Burr Assortment - Includes 30 high-quality diamond grinding bits with assorted shapes and grits (120–150), offering maximum versatility for jewelry making, engraving, repairs, and delicate craftwork.
• Durable Alloy Construction with Diamond Coating - Each burr is crafted from strong alloy steel and coated with tough diamond particles for improved sharpness, wear resistance, and long-lasting performance on detailed grinding tasks.
• Precision 2.35mm Shank-Fit Design - Standard 2.35mm (3/32”) shank ensures stable rotation and reliable compatibility with most rotary tools, including handheld rotary devices and hobby tools.
• Multi-Shape Set for Detailed Work - Features essential burr profiles—ball, cone, cylinder, needle, and tapered—providing all the standard shapes needed for carving, smoothing, drilling, and shaping fine details.
• Works on a Wide Range of Materials - Ideal for engraving and polishing wood, metal, resin, stone, PVC, ABS, plastics, and more. Perfect for jewelry making, lapidary work, modeling, crafting, home repairs, and DIY projects.