CLAIM PERIOD ENDS 14/06/2026
Get the Right Grinding Disc for Every Job
Grinding discs are vital for smoothing rough edges, preparing welds, and removing rust or mill scale from metal surfaces. These durable abrasive wheels attach to angle or bench grinders, ensuring efficient and safe metalworking.
At Mitre 10, we offer a wide range of grinding discs from trusted brands like Makita, Norton, and Flexovit. Our selection includes popular sizes such as 100mm, 115mm, and 125mm for angle grinders, as well as larger bench grinding wheels.
When selecting a grinding disc, consider the material. Metal grinding discs are ideal for steel and iron, while specialised options suit stainless steel, aluminium, and other materials. Grit ratings matter too – lower grits (24-36) remove material quickly, while higher grits (60-80) provide smoother finishes.
Disc thickness is another key factor. Thicker discs (around 6mm) are durable and suited for heavy material removal, while thinner discs offer precision for detailed work. Always ensure your disc matches your grinder's maximum RPM rating for safe use.
Quality grinding discs feature reinforced fibreglass backing for strength and safety. Professional-grade options with ceramic or zirconia grains stay sharper longer, reducing disc changes and boosting productivity.
Frequently Asked Questions
What's the difference between grinding and cutting discs?
Grinding discs are thicker (6mm) for material removal, while cutting discs are thinner (1-3mm) for slicing through metal. Never use a cutting disc for grinding, as it may fail dangerously.
How do I choose the right size?
Match the disc size to your grinder's capacity (e.g., 100mm, 115mm, 125mm) and ensure the arbor hole fits your grinder's spindle.
How long do grinding discs last?
Disc life depends on usage and material. Premium ceramic or zirconia discs last 2-3 times longer than standard options. Replace discs when damaged, inefficient, or too small for safe use.
