Concrete Grinding Tools Australia

Shop professional concrete grinding tools and diamond tooling for floor preparation, coating removal, levelling and surface refinement. Explore Redi Lock and magnetic grinding shoes, 125mm, 180mm and 250mm diamond grinding discs, PCD tooling and accessories for professional concrete grinding applications.

Shop Concrete Grinding Tools

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Professional Concrete Grinding Tools & Diamond Tooling

Paddle Wholesale Australia supplies professional concrete grinding tools and diamond tooling for floor preparation, surface levelling, coating removal and concrete refinement. Our range includes Redi Lock grinding shoes, magnetic grinding shoes, 125mm, 180mm and 250mm concrete grinding discs, PCD tooling and grinding accessories for professional and trade applications.

Selecting the correct diamond tooling depends on several factors, including the hardness of the concrete, diamond bond, grit size, grinding machine and the material being removed. Using the correct combination helps achieve effective cutting performance, consistent wear and the required surface finish.

Our concrete grinding range includes tooling for aggressive initial grinding, general floor preparation, scratch refinement and removal of coatings, adhesives and other surface materials.

Choosing the Right Concrete Grinding Tool

The correct grinding tool depends on the machine being used, the concrete hardness and the type of work being performed.

Redi Lock grinding shoes provide a quick-change tooling system commonly used on compatible floor grinders and are available in different diamond segment shapes, bonds and grit sizes.

Magnetic grinding shoes use a magnetic mounting system for fast tooling changes and are available for a range of concrete grinding and surface preparation applications.

125mm and 180mm concrete grinding discs are commonly used with compatible handheld grinders for edges, smaller areas and general concrete surface preparation.

250mm concrete grinding discs are designed for compatible floor grinding machines and provide a larger grinding area for floor preparation and concrete refinement.

PCD grinding tools are designed primarily for aggressive removal of coatings, adhesives and other surface materials rather than conventional concrete refinement.

Understanding Diamond Grit

Diamond grit affects how aggressively a grinding tool cuts and the finish it leaves behind.

16 grit – Very aggressive grinding for heavy material removal and initial surface preparation.

30 grit – Aggressive general-purpose grinding and commonly used for initial concrete preparation.

60 grit – Medium grinding for refining the surface and reducing scratches left by coarser tooling.

120 grit – Finer grinding for further scratch refinement and preparing the concrete for subsequent finishing or polishing stages.

The correct grit sequence depends on the concrete, desired finish and previous grinding steps.

Choosing the Correct Diamond Bond

The bond controls how quickly the metal surrounding the diamonds wears away and exposes fresh diamond.

A useful general rule is:

Hard concrete → softer bond
A softer bond wears more readily, helping expose fresh diamond when grinding hard concrete.

Soft or abrasive concrete → harder bond
A harder bond helps prevent the tooling from wearing too quickly on abrasive surfaces.

Concrete conditions can vary across the same floor, so tooling performance should be monitored during grinding and the bond adjusted when necessary.

Frequently Asked Questions

What concrete grinding tool should I use?

The correct tool depends on the grinder, concrete hardness, material being removed and the finish required. Floor grinders commonly use Redi Lock, magnetic or larger grinding discs, while 125mm and 180mm discs are commonly used with handheld grinders for edges and smaller areas.

What grit should I use to grind concrete?

Coarse grits such as 16 or 30 grit are typically used for aggressive grinding and initial floor preparation. 60 grit can be used for refinement, while 120 grit produces a finer scratch pattern before subsequent finishing or polishing stages.

What bond should I use for hard concrete?

Hard concrete generally requires a softer bond so the metal matrix wears sufficiently to expose fresh diamond. If the bond is too hard, the tool can glaze and stop cutting effectively.

What bond should I use for soft concrete?

Soft or abrasive concrete generally requires a hard or super-hard bond. This helps slow the wear of the metal matrix and can improve tool life on abrasive surfaces.

What is the difference between Redi Lock and magnetic grinding shoes?

Both are quick-change tooling systems, but they use different mounting methods and must match the grinding system fitted to the machine. Always confirm the machine or grinding plate compatibility before ordering.

When should I use PCD grinding tools?

PCD tools are mainly used for aggressive removal of coatings, adhesives, paint and other surface materials. They are generally not used as a substitute for conventional diamond tooling when the goal is normal concrete refinement.

Can I use a 125mm or 180mm grinding disc on a handheld grinder?

Yes, provided the disc is designed for the grinder and the machine is suitable for the disc diameter, mounting system and operating speed. Always confirm compatibility before use.

How do I know when I need to change to a finer grit?

Move to the next grit when the previous tooling has completed the required material removal and produced a consistent scratch pattern across the surface. Each following grit should progressively reduce the scratches left by the previous stage.

Why are my diamond tools not cutting properly?

Possible causes include using a bond that is too hard for the concrete, unsuitable grit, incorrect tooling for the application or glazing of the diamond segments. Concrete conditions should be assessed and the tooling adjusted as required.

Can the same diamond tooling work on every concrete floor?

Not always. Concrete hardness, abrasiveness, aggregate exposure and surface condition can vary considerably. Different floors may require different bonds, grits or segment designs to achieve effective grinding.

Need Help Choosing the Right Concrete Grinding Tool?

Not sure which tooling suits your floor or machine? Send Paddle Wholesale Australia details of your grinder model, concrete condition and the work you are trying to perform. A photo of the floor or existing tooling can also help us recommend a suitable option from our range.

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