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Diamond Cutting Disc Set 10pc – 16–40mm Rotary Cut-Off Wheels
Diamond Cutting Disc Set 10pc – 16–40mm Rotary Cut-Off Wheels
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Diamond Cutting Disc Set – Precision Cut-Off Wheels for Rotary Tools
Take your DIY crafts, jewelry making, and hobby projects to the next level with this professional-grade Diamond Cutting Disc Set. Featuring 10 ultra-thin diamond-coated abrasive discs in five sizes — 16mm, 20mm, 30mm, 35mm, and 40mm — plus 2 mandrel rods, this versatile kit is built for precise, clean cuts through a wide range of hard materials.
Each disc is coated on both sides and around the edge, delivering maximum cutting efficiency and extended wear life. At just 0.5–0.6mm thick, these super-thin wheels are ideal for creating precise slots, slits, and detailed cuts without removing excessive material.
Made in Mainland China.
Key Features
- ✅ 10 Diamond-Coated Discs in 5 sizes: 16mm, 20mm, 30mm, 35mm & 40mm
- ✅ Ultra-Thin Profile (0.5–0.6mm) for precision slot and slit cutting
- ✅ Coated on Both Sides & Edge for superior, long-lasting cutting performance
- ✅ Emery & Diamond Material for hardness and durability
- ✅ Includes 2 Mandrel Rods – 3mm bottom / 4.5mm top shaft diameter, 38mm shaft length
- ✅ Compatible with most standard rotary tools (Dremel-style)
- ✅ Ideal for: gemstones, metal, glass, ceramics, porcelain, tiles, carbide, and rocks
- ✅ Perfect for jewelry making, silversmithing, DIY craft, and hobby work
Specifications
| Disc Sizes | 16mm / 20mm / 30mm / 35mm / 40mm |
| Disc Thickness | 0.5–0.6mm |
| Material | Emery & Diamond |
| Arbor Shaft Length | 38mm |
| Shaft Diameter (Bottom) | 3mm |
| Shaft Diameter (Top) | 4.5mm |
| Package Contents | 10x Diamond Discs + 2x Mandrel Rods (no retail box – packed in bubble bag) |
| Origin | Mainland China |
What Can You Cut?
These diamond abrasive discs are engineered to handle the toughest materials in your workshop or craft room:
- Gemstones & rocks
- Metal & carbide
- Glass & ceramics
- Porcelain & tiles
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Safety & Tool Use Reference
For best practices when using rotary abrasive tools, refer to the OSHA Abrasive Wheel Machinery Safety Guidelines. Always wear appropriate eye protection and follow your rotary tool manufacturer's recommendations for accessory speed ratings.
Learn more: Angle grinder
Frequently Asked Questions
Q: Are these diamond cutting discs compatible with a Dremel rotary tool?
A: Yes! The mandrel rod has a 3mm bottom shaft diameter, which is compatible with most standard rotary tools including Dremel-style devices. Simply secure the mandrel into your rotary tool's collet, attach the desired disc, and you're ready to cut.
Q: What sizes of diamond cutting discs are included in this set?
A: The set includes 10 diamond-coated cut-off discs in five sizes: 16mm, 20mm, 30mm, 35mm, and 40mm. You also receive 2 mandrel rods for mounting the discs to your rotary tool.
Q: Can these discs cut through glass and gemstones?
A: Absolutely. These discs are made from diamond and emery abrasive materials, making them well-suited for cutting hard substances like gemstones, glass, ceramics, porcelain, and tiles. Their ultra-thin 0.5–0.6mm profile allows for clean, precise cuts with minimal material loss.
Q: Are the discs coated on both sides?
A: Yes — each disc is coated with diamond abrasive on both sides as well as around the outer edge, providing efficient cutting action and extended durability compared to single-sided discs.
