4" Diamond Grinding Disc 100mm 80-3000 Grit Abrasive Wheel

4-Inch Diamond Coated Grinding Disc – 80 to 3000 Grit

Tackle your most demanding grinding, sharpening, and finishing tasks with this premium 4-inch (100mm) diamond coated abrasive grinding disc. Available in a wide range of grits from coarse 80 to ultra-fine 3000, this versatile disc delivers consistent, fast material removal on wood, stone, glass, ceramics, carbide, and more. Whether you're a seasoned woodworker, hobbyist, or DIY enthusiast, this disc keeps your tools razor-sharp and your surfaces perfectly finished.

Key Features

• Wide Grit Range: 80 to 3000 grit options for everything from aggressive stock removal to mirror-smooth polishing and finishing.
• Diamond Coated Surface: Industrial-grade diamond particles bond to the disc for exceptional durability, long service life, and superior cutting performance.
• 4-Inch / 100mm Diameter: Compact size fits standard angle grinders and bench grinders for easy, controlled grinding.
• Versatile Material Compatibility: Ideal for wood, stone, glass, ceramics, tile, carbide tools, and metal surfaces.
• Abrasive Block / Disc Type: Rigid construction for stable, flat grinding — perfect for sharpening chisels, plane blades, knives, and other woodworking tools.
• Consistent Performance: Even diamond distribution across the surface ensures uniform material removal with every pass.
• DIY & Professional Use: Suitable for home workshops, woodworking studios, and professional fabrication environments.

Specifications

• Diameter: 4 inch / 100mm
• Grit Range: 80, 120, 180, 240, 320, 400, 600, 800, 1000, 1200, 1500, 2000, 3000
• Type: Diamond Coated Abrasive Disc / Grinding Wheel
• Material: Diamond coating on plastic backing
• High-Concern Chemicals: None
• Country of Origin: Made in China

How to Choose Your Grit

• Coarse (80–180): Heavy stock removal, reshaping edges, and rough grinding.
• Medium (240–400): General sharpening and shaping of tools and surfaces.
• Fine (600–1000): Refining edges, smoothing surfaces, and detailed work.
• Ultra-Fine (1200–3000): Polishing, honing, and achieving a mirror-smooth finish.

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Frequently Asked Questions

Q: What materials can the 4-inch diamond grinding disc be used on?

A: This diamond coated abrasive disc is compatible with a wide variety of materials including wood, stone, glass, ceramic, tile, carbide, and various metals. Its diamond-coated surface makes it harder than most materials, ensuring efficient grinding and shaping across applications.

Q: Which grit should I choose for sharpening woodworking tools like chisels and plane blades?

A: For sharpening woodworking tools, it's best to start with a medium grit (240–400) to establish the edge, then progress through fine (600–1000) and ultra-fine (1200–3000) grits to hone and polish the cutting edge to a razor-sharp finish. Coarser grits (80–180) are ideal if your tool is damaged or severely dulled and needs significant reshaping first.

Q: Is this disc compatible with standard angle grinders?

A: Yes, the 100mm (4-inch) diameter is a standard size compatible with most angle grinders and bench grinders. Always ensure your grinder's RPM rating is compatible with the disc's specifications before use, and follow all manufacturer safety guidelines when operating power tools.

Q: How long does a diamond grinding disc last compared to regular abrasive wheels?

A: Diamond coated discs generally outlast traditional abrasive wheels significantly. Because diamond is one of the hardest materials known, the cutting particles resist wear far better than conventional abrasives like aluminum oxide or silicon carbide, making this disc a cost-effective, long-lasting choice for frequent use in woodworking and DIY projects.