12Pcs Diamond Grinding Burr Set – 2.3mm Rotary Tool Bits

Unlock precision craftsmanship with this 12-piece Diamond Grinding Burr Needle Set, designed for engraving, carving, grinding, and polishing a wide range of hard materials. Whether you're working on glass, jade, stone, ceramics, or mold cavities, these needle-point rotary tool bits deliver professional-grade performance for hobbyists and tradespeople alike.

Made in Mainland China.

Why You'll Love This Set

• Versatile 12-Piece Kit: Includes a variety of needle-point diamond burr shapes, giving you the right bit for every carving, grinding, or polishing task.
• 2.3mm Shank Diameter: Standard shank size compatible with most rotary tools, engraving machines, electric drills, and pneumatic grinders — just verify your machine's collet size before use.
• Diamond-Coated Tips: Industrial diamond abrasive coating ensures superior hardness for working on glass, jade, stone, ceramics, and mold surfaces.
• Wide Application: Perfect for stone carving, hollow carved lines, jade carving and processing, glass engraving, mold cavity machining, cleaning casting/forging/welding seams, burrs, and more.
• Brand New: Each set is 100% new and unused, ready for immediate use right out of the box.

Specifications

• Quantity: 12 pieces
• Shank Diameter: 2.3mm
• Type: Diamond Grinding Burr Needle Points
• Compatible With: Electric engraving machines, rotary tools, lifting mills, electric drills, pneumatic grinders
• Applications: Glass, jade, stone, ceramics, molds, metalwork

Compatible Tools

These burr bits can be installed in a wide variety of power tools including electric engraving machines, rotary tool systems, lifting mills, electric drills, and pneumatic grinders. Always confirm your tool's collet accepts a 2.3mm shank before purchasing.

Important Notes

• Please allow a 0–3mm tolerance due to manual measurement.
• Colors may vary slightly from product images due to monitor display differences.
• As these are supplied without individual packaging, minor surface marks on the shanks may occasionally occur — this does not affect performance or quality.

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Frequently Asked Questions

Q: What materials can these diamond grinding burr bits work on?

A: These diamond burr needle-point bits are designed to work on a wide range of hard materials, including glass, jade, stone, ceramics, and various mold surfaces. They are also effective for cleaning up casting, forging, and welding edges, burrs, and weld seams.

Q: What shank size do these rotary tool bits have, and will they fit my tool?

A: Each bit in this 12-piece set features a 2.3mm shank diameter. They are compatible with most standard rotary tools, electric engraving machines, pneumatic grinders, and electric drills. Please verify your machine's collet or chuck accepts a 2.3mm shank before use.

Q: How many pieces are included and what shapes are in the set?

A: The set includes 12 diamond grinding burr needles in a variety of needle-point shapes, giving you a comprehensive selection for engraving, carving, polishing, and detailed grinding work across different materials and project types.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.