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Introduction
Grinding exposed aggregate concrete is very different from grinding standard concrete. The exposed stone and abrasive surface can quickly wear out the wrong diamond tooling, leading to slower grinding, higher costs and poor results.
Choosing the correct bond, grit and segment design can dramatically improve productivity and extend the life of your tooling.
At Diamond Tool Warehouse, our recommended starting point for exposed aggregate is our Orange 25 Grit Triple Segment Exposed Aggregate Dominator, specifically designed for extremely soft and highly abrasive concrete.
👉 View the Exposed Aggregate Dominator here:
Why Exposed Aggregate Needs Different Diamond Tooling
One of the biggest misconceptions in the industry is that exposed aggregate requires diamonds designed for extremely hard concrete.
In reality, exposed aggregate is often one of the most abrasive surfaces you’ll grind. While the decorative stones may be extremely hard, the overall surface rapidly wears the metal bond.
That’s why Diamond Tool Warehouse recommends Orange tooling, which is designed for extremely soft and abrasive concrete and features a super-hard bond that resists premature wear.
Simply remember:
Orange = Exposed Aggregate = Super-Hard Bond
Our Recommended Diamond
For most exposed aggregate jobs, our first recommendation is the:
Orange 25 Grit Triple Segment Exposed Aggregate Dominator
This tool combines:
- Super-hard bond for abrasive concrete
- 25 grit for fast, controlled cutting
- Triple segment design for stability and even wear
Benefits include:
- Longer tooling life
- Faster grinding
- Reduced vibration
- Consistent scratch pattern
- Lower cost per square metre
Whether you’re grinding a driveway, pool surround or decorative concrete, this is one of the best-performing exposed aggregate diamonds in our range.
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Choosing the Right Grit
For most projects, we recommend:
25 Grit – General grinding and stock removal.
60 Grit – Removes scratches from the first grinding stage.
120 Grit – Produces a finer finish and prepares the surface for sealing or polishing.
Always remove the scratches from the previous grit before moving to the next stage.
Why Triple Segment?
The Triple Segment design spreads the grinder’s weight more evenly across the floor.
This provides:
- Better stability
- Longer diamond life
- Reduced vibration
- More even wear
- Improved scratch consistency
For exposed aggregate, it has proven to be one of the most effective segment designs.
Tips for Better Results
To achieve the best finish and maximise tooling life:
- Always grind a small test area first.
- Use a complete matched set of diamonds.
- Inspect segment wear regularly.
- Keep your grinder properly maintained.
- Maintain your H-Class dust extractor for maximum airflow.
- Replace full dust bags before they reduce suction.
- Let the diamonds do the work instead of forcing the grinder.
Common Mistakes
Avoid these common errors:
- Using standard concrete diamonds on exposed aggregate.
- Choosing tooling designed for extremely hard concrete instead of abrasive concrete.
- Starting with the wrong grit.
- Skipping grit stages.
- Running worn-out diamonds.
- Ignoring poor dust extraction.
Why Buy from Diamond Tool Warehouse?
At Diamond Tool Warehouse, we supply professional diamond tooling tested in Australian conditions. Our team can help you choose the right tooling for your grinder, your floor and your project.
If you’re tackling exposed aggregate, our Orange 25 Grit Triple Segment Exposed Aggregate Dominator is the tool we recommend first.
👉 Shop the Exposed Aggregate Dominator
Final Thoughts
Choosing the right diamond tooling can make the difference between a slow, expensive job and a fast, profitable one.
For exposed aggregate, remember one simple rule:
Orange = Extremely Soft & Abrasive Concrete = Super-Hard Bond
Combined with the 25 Grit Triple Segment design, you’ll achieve faster cutting, longer tooling life and more consistent results on exposed aggregate surfaces.
Unit 3, 478 Scottsdale Dve,
VARSITY LAKES, QLD 4227
