Metal Grinding Discs for Angle Grinders
Oz Abrasives supplies metal grinding discs for angle grinders and related grinding applications. The range includes common diameters such as 100mm, 115mm, 125mm, 180mm and 230mm, with products from TAF, Klingspor and other brands. Select a grinding disc based on the material, task, disc diameter, bore, grit/grade and the product's maximum operating speed.
What Is a Grinding Disc Used For?
Grinding discs are designed for material removal, weld grinding, edge preparation, deburring and surface shaping. They are different from cutting discs, which are designed for parting/cut-off operations, and from flap discs, which combine abrasive flaps with finishing and blending capability. Choose the product type that matches the operation.
Choose the Right Grinding Disc
- Identify the material: steel, stainless steel, aluminium/non-ferrous material, stone/concrete or another specified substrate.
- Identify the task: heavy stock removal, weld grinding, deburring, shaping or surface preparation.
- Select the correct diameter and bore for the grinder.
- Select the abrasive/grit/grade specified for the material and task.
- Check the disc maximum operating speed against the grinder's no-load speed.
- Follow the individual product and grinder manufacturer's instructions.
Grinding Disc Sizes
The current Oz Abrasives category exposes 100mm, 115mm, 125mm, 180mm and 230mm pathways. The correct diameter is determined by the grinder and product specification. Do not assume a disc can be fitted simply because the diameter appears similar; the bore and rated speed also need to match.
Grinding Disc Grit and Grade
Grit affects the aggressiveness of material removal and the resulting surface. AIMS' current grinding guide groups 16–24 as very coarse, 30–46 as coarse, 46–60 as medium, 60–80 as medium-fine and 80–120 as fine. For Oz products, use the exact grit/grade and application stated on the individual listing or manufacturer documentation rather than applying a universal grade rule.
Grinding Discs for Steel
The Oz catalogue includes grinding discs specifically identified for steel, including Klingspor and TAF products. Choose a product whose specification confirms steel suitability and match the grade to the required removal and finish.
Grinding Discs for Stainless Steel
The catalogue includes a Klingspor Supra soft-grit product specifically described for stainless steel. Stainless-steel grinding should use a product explicitly rated for the material; do not assume a general-purpose steel disc is suitable.
Grinding Discs for Aluminium and Non-Ferrous Metals
The current catalogue includes products specifically positioned for aluminium, including a Klingspor Supra soft-grit aluminium product and TAF MS31 aluminium/non-ferrous products. Select only a product whose specification confirms suitability for aluminium/non-ferrous material.
Grinding Discs for Stone and Concrete
The current category includes a Klingspor Supra medium-grit product for stone/concrete. These products should remain clearly separated from metal-only grinding discs in the category copy and filters so customers can select the correct abrasive for the substrate.
Grinding Disc vs Cutting Disc vs Flap Disc
Grinding discs are for stock removal and grinding; cutting discs are for parting cuts; flap discs are commonly used for blending, finishing and lighter material removal. Never use a cutting disc for grinding unless the specific product is explicitly designed and rated for that operation.
Maximum RPM and Disc Compatibility
Every abrasive disc has a maximum operating speed. The grinder's no-load speed must not exceed the disc's rated maximum. Check the markings on the disc and the grinder before fitting the wheel. Never modify the bore or use an improvised mounting arrangement to make a disc fit.
Why Buy Grinding Discs from Oz Abrasives?
Oz Abrasives combines grinding-disc products from established abrasive brands with multiple sizes and material-specific options. The category allows customers to narrow products by size, category, pack quantity and brand, while individual listings provide the technical specification needed for final selection.
Frequently Asked Questions
What is a grinding disc used for?
Grinding discs are used for material removal, weld grinding, deburring, shaping and surface preparation. Exact application depends on the product specification.
What size grinding disc do I need?
Match the diameter and bore to your angle grinder and the disc specification. Oz Abrasives currently exposes 100mm, 115mm, 125mm, 180mm and 230mm options.
What is the difference between a grinding disc and a cutting disc?
A grinding disc is designed for grinding and stock removal, while a cutting disc is designed for parting cuts. They are not interchangeable.
Can I use a grinding disc on stainless steel?
Only use a disc explicitly specified for stainless steel. Oz's catalogue includes products specifically identified for stainless-steel grinding.
Can I use a grinding disc on aluminium?
Only use a product whose specification confirms aluminium/non-ferrous suitability. The current Oz range includes aluminium-specific products.
What grit grinding disc should I use?
Select grit/grade based on material and task. Coarser grades generally remove material more aggressively, while finer grades are used where a finer grinding result is required. Always follow the product specification.
What is a depressed-centre grinding disc?
It is a grinding disc with a recessed centre that provides clearance for the grinder flange and is commonly used on angle grinders. Confirm the profile and mounting arrangement on the product.
What RPM should a grinding disc have?
The disc's maximum operating speed must meet or exceed the grinder's no-load speed. Check the disc and grinder markings before use.
Can I use a grinding disc sideways?
Use the disc only in the manner specified by its manufacturer. Do not use a cutting disc for side grinding.
What is the difference between a flap disc and grinding disc?
Grinding discs are typically selected for heavier stock removal and weld grinding, while flap discs are useful for blending, finishing and combined grinding/finishing work.
