Diamond Cutting Disc Set 10pc – 16–40mm Rotary Cut-Off Wheels

20mm

$9.31

$9.31 $11.55

Diamond Cutting Disc Set 10pc – 16–40mm Rotary Cut-Off Wheels

$9.31

$9.31 $11.55

Shipping calculated at checkout.

Color 20mm 30mm 35mm 40mm 16mm

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.

Made with care

Great value

Elegant design

Quality materials

This product is crafted with quality materials to ensure durability and performance. Designed with your convenience in mind, it seamlessly fits into your everyday life.

We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible.

We are committed to ensuring a positive shopping experience for all our customers. If for any reason you wish to return an item, we invite you to reach out to our team for assistance, and we will evaluate every return request with care and consideration.