5-Pc Diamond Spherical Burr Set – 2.35mm Shank, 0.5–8mm
5-Pc Diamond Spherical Burr Set – 2.35mm Shank, 0.5–8mm
5-Piece Diamond Spherical Burr Grinding Bit Set
Take your engraving, carving, and precision grinding work to the next level with this 5-piece diamond spherical burr set. Featuring a universal 2.35mm shank and available in head diameters from 0.5mm to 8mm, these electroplated diamond grinding heads are built for fine detail work on hard materials including glass, tile, stone, jade, and hardened metals.
Whether you're crafting intricate jewelry, shaping gemstones, working on mold finishing, or tackling DIY engraving projects, these burrs deliver consistent, precise results. The 40-mesh diamond coating ensures aggressive yet controlled material removal — perfect for both hobbyists and professional craftspeople.
Key Features
- Electroplated Diamond Coating: 40-mesh diamond grain for durable, consistent abrasion on hard materials
- Spherical Head Shape: Ideal for curved surfaces, concave detailing, and precision carving
- Wide Size Range: Choose from 14 head diameter options — 0.5mm, 0.6mm, 0.8mm, 1mm, 1.2mm, 1.5mm, 1.8mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, or 8mm
- Universal 2.35mm Shank: Compatible with most rotary tools, Dremel-style grinders, electric engravers, and flex-shaft motors
- Multi-Material Use: Works on glass, ceramic tile, stone, jade carvings, and hardened metal molds
- Compact & Precise: Approx. 42mm (1.65 in) total length for excellent control in tight spaces
- Set of 5: Five identical burrs of your chosen size so you always have a fresh bit on hand
Specifications
- Material: Diamond sand (electroplated)
- Shape: Spherical (round burr)
- Grain Size: 40 mesh
- Shank Diameter: 2.35mm (0.09 in)
- Total Length: ~42mm (1.65 in)
- Head Diameter Options: 0.5mm – 8mm (see size list above)
- Quantity: 5 pieces
- Country of Origin: Made in Mainland China
Compatible Tools
These burrs are designed for use with rotary grinders, electric engravers, Dremel-style tools, flex-shaft machines, and precision carving motors. The 2.35mm shank fits the standard collet size used across most hobby and professional rotary tools.
What's in the Box?
- 5 × Diamond Spherical Grinding Burr Heads
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Frequently Asked Questions
Q: What materials can these diamond spherical burrs grind and carve?
A: These diamond grinding burrs are best suited for hard materials such as glass, ceramic tile, natural stone, jade, hardened metals, and mold surfaces. The 40-mesh electroplated diamond coating provides effective material removal on surfaces that standard carbide or steel bits struggle with.
Q: What rotary tools are compatible with these 2.35mm shank burrs?
A: The 2.35mm shank is a standard size compatible with most rotary tools and engravers, including Dremel-style grinders, flex-shaft motors, electric carving machines, and benchtop mini grinders. Always confirm your tool's collet size before use.
Q: Should I use water or coolant when using these diamond burrs?
A: When working on glass, stone, or tile, using a small amount of water as a coolant is recommended. It helps keep the bit cool, extends the life of the diamond coating, and reduces dust during grinding and carving operations.
Q: How do I choose the right head diameter for my project?
A: For fine detail work, engraving, or tight internal curves, choose smaller diameters such as 0.5mm–2mm. For broader material removal, shaping, or larger mold work, opt for 3mm–8mm heads. The set of 5 pieces lets you work through your chosen size without interruption.