6-Piece Diamond Grinding Burr Set 1–4mm | Engraving Carving Bits

6-Piece Diamond Grinding Needle Burr Set – Precision Engraving & Carving Bits

Take your engraving, carving, and mould-grinding projects to the next level with this professional-grade 6-piece diamond-coated grinding needle burr set. Electroplated with fine 200-grit diamond micro powder, these needle bits deliver smooth, controlled material removal on glass, jade, ceramics, hard alloys, and other tough surfaces. Whether you're a hobbyist or a professional craftsperson, this set gives you six essential head sizes in a single pack.

Made in Mainland China.

Key Features

• 6 Sizes Included: 1mm, 1.5mm, 2mm, 2.5mm, 3mm, and 4mm head diameters — one of each per set
• Diamond-Coated: Electroplated 200-grit diamond abrasive for consistent, long-lasting cutting performance
• Universal Shank: 2.35mm (3/32") shank fits most standard rotary tools, electric grinders, carving machines, and pneumatic tools
• Versatile Applications: Ideal for carving glass, jade, ceramics, hard alloys, moulds, and other abrasive materials
• Use With Water: Designed to be used with water as a lubricant for optimal performance and extended bit life
• Compact & Precise: Total length 40–45mm, perfect for detailed, intricate work
• Silver colour finish for easy identification during use

Specifications

Compatible Materials

• Glass & tempered glass
• Jade, gemstones & semi-precious stones
• Hard alloys & tool steels
• Ceramics & porcelain
• Moulds & inner holes

What's in the Box?

• 6 × Diamond Coated Grinding Needles (1mm, 1.5mm, 2mm, 2.5mm, 3mm, 4mm — one of each)

Safety & Usage Tips

Always use water as a lubricant during operation to maximise bit life and minimise heat build-up. Wear appropriate eye protection when operating rotary tools. For safe tool use guidelines, refer to the U.S. Consumer Product Safety Commission Power Tool Safety guidelines.

Looking for more crafting and DIY tools? Check out our 1/4" Hex Wire Twister Drill Attachment or explore our 10 Dual-End Temporary Tattoo Markers for creative projects.

Learn more: Sharpening

Frequently Asked Questions

Q: What rotary tools are compatible with these diamond grinding needle bits?

A: These diamond grinding burrs feature a standard 2.35mm (3/32") shank, making them compatible with most popular rotary tools, electric grinders, carving machines, and pneumatic tools. Always confirm your tool accepts a 3/32" collet before use.

Q: What materials can I carve or engrave with these bits?

A: The 200-grit diamond-coated needle burrs are well-suited for working on hard materials including glass, jade, gemstones, ceramics, hard alloys, and moulds. They are not recommended for use on very soft or porous materials where finer control bits may be more appropriate.

Q: Do I need to use water when operating these bits?

A: Yes. Using water as a lubricant is recommended during operation. It helps reduce heat build-up, extends the working life of the bits, and produces a cleaner finish on your workpiece.

Q: How many pieces and sizes are included in this set?

A: This set includes 6 diamond grinding needles with head diameters of 1mm, 1.5mm, 2mm, 2.5mm, 3mm, and 4mm — one of each size — providing a comprehensive range for detailed and varied engraving and carving tasks.