7-Inch Sintered Diamond Grinding Disc 30 Grit – Concrete & Epoxy

7-Inch Sintered Diamond Grinding Disc – 30 Grit | 5/8"–7/8" Arbor

Take your floor surface preparation to the next level with this heavy-duty 7-inch sintered segment diamond grinding disc. Engineered with a durable metal-bond construction and industrial-grade diamond segments, this wheel delivers aggressive stock removal, outstanding wear resistance, and long service life — making it a go-to tool for professionals and serious DIYers alike.

Whether you're stripping epoxy coatings, grinding concrete slabs, or smoothing terrazzo and natural stone, this 30-grit disc gets the job done efficiently. Made in Mainland China.

Key Features

• Heavy-Duty Sintered Segments: Metal-bond diamond construction ensures fast, consistent grinding performance and superior wear resistance for extended use.
• Aggressive 30-Grit Rating: Ideal for rapid material removal, surface leveling, and epoxy coating stripping on floor surfaces.
• Versatile Application: Works effectively on concrete, terrazzo, natural stone, masonry, and epoxy-coated surfaces.
• Balanced Steel Body: Precision-balanced core minimizes vibration and improves grinding stability for a smoother, more controlled operation.
• Universal 5/8"–7/8" Arbor Fit: Compatible with most floor grinders and angle grinders featuring a standard 5/8"–7/8" (22.23/16mm) arbor — no adapters needed for most machines.
• Long Service Life: Sintered bonding technology locks diamonds deeply into the matrix for maximum durability and consistent cutting performance throughout the disc's life.

Specifications

• Wheel Diameter: 7 inches (180mm)
• Grit: 30#
• Arbor / Center Hole: 5/8"–7/8" (22.23mm / 16mm)
• Bond Type: Metal (Sintered)
• Material: Steel body + Sintered Diamond Segments
• Quantity: 1 Piece
• Country of Origin: Made in Mainland China

What's in the Box?

• 1× 7-Inch Sintered Diamond Grinding Disc

Note: Due to lighting and display variations, colors in product images may appear slightly different from the actual item. Dimensional tolerances are ±1–3mm.

Safe Tool Use Resources

For best practices when working with abrasive grinding tools, refer to the OSHA Abrasive Wheel Machinery Safety Guidelines. Always wear proper PPE including eye protection, gloves, and a dust mask when operating grinding equipment.

Frequently Asked Questions

Q: What surfaces can this 7-inch sintered diamond grinding disc be used on?

A: This grinding disc is designed for use on concrete, terrazzo, natural stone, masonry, and epoxy-coated floor surfaces. The 30-grit rating makes it especially effective for aggressive surface preparation and coating removal.

Q: What grinders is this disc compatible with?

A: This disc features a universal 5/8"–7/8" (22.23/16mm) arbor, making it compatible with most standard floor grinders and angle grinders. Always verify your machine's arbor size before use.

Q: Why choose a sintered metal-bond disc over a regular abrasive wheel?

A: Sintered metal-bond diamond discs embed diamonds deep within the bonding matrix using a high-heat sintering process. This results in significantly longer service life, more consistent cutting performance, and superior wear resistance compared to standard resin-bond or conventional abrasive wheels — especially when working on hard, dense materials like concrete and terrazzo.

Q: Is personal protective equipment required when using this disc?

A: Yes. Always use appropriate safety gear, including safety glasses or a face shield, heavy-duty gloves, hearing protection, and a dust respirator when grinding concrete or epoxy surfaces, as these materials can generate fine airborne particles during operation.