Multi purpose diamond blade designed for professional contractors carrying out mixed concrete, general construction, and abrasive material cutting on UK construction and infrastructure sites.
• Under cut protected segment design
• For mixed site use across concrete, general purpose, abrasive & asphalt
• 10mm segment height
• Available in 300x20, 350x25, 400x20 400x25, & 450x25mm sizes
• EN13236 compliant
Multi Purpose Diamond Blade – Super Premium – Under Cut Protected – 10mm Segment – EN13236 – OTEC D18
Multi purpose diamond blade designed for professional contractors carrying out mixed concrete, general construction, and abrasive material cutting on UK construction and infrastructure sites.
• Under cut protected segment design
• For mixed site use across concrete, general purpose, abrasive & asphalt
• 10mm segment height
• Available in 300x20, 350x25, 400x20 400x25, & 450x25mm sizes
• EN13236 compliant
Multi Purpose Diamond Blade – Super Premium – Under Cut Protected – 10mm Segment – EN13236 – OTEC D18 is developed for professional use on UK construction, infrastructure, and civil engineering sites where a wide range of construction materials are encountered.
It is intended for contractors and site operatives working with concrete, reinforced concrete, general construction products such as slabs and kerbs, abrasive materials including roof tiles and sandstone, and asphalt-based materials. The under cut protected segment design supports controlled wear behaviour when cutting abrasive surfaces, helping to maintain stable cutting performance across varied site conditions.
The D18 is not suitable for metal cutting. It should not be specified for exposed steel, RSJs, rebar, or metal pipe, and should be used within its intended multi-purpose concrete and abrasive application range.
For these materials we would recommend a blade more specific to those materials. Browse our OTEC diamond blades category.
✓ Under cut protected segment design helps reduce steel core erosion during abrasive cutting
✓ Supports controlled and predictable cutting behaviour across mixed materials
✓ Suitable for sites where material type changes frequently during the same task
✓ Maintains consistent performance under regular professional use
✓ Developed for reliable operation on UK construction and infrastructure sites
Specifications Table
| Specification | Details |
|---|---|
| Product Name | Multi Purpose Diamond Blade – Super Premium – Under Cut Protected – 10mm Segment – EN13236 – OTEC D18 |
| Product Code | D18 |
| Segment Height | 10mm |
| Segment Type | Under cut protected |
| Primary Application | Concrete |
| Secondary Application | General purpose, abrasive materials, asphalt |
| Suitable Materials | Concrete, general construction products, abrasive concrete, asphalt |
| Not Suitable For | Metal, exposed steel, rebar |
| Safety Standard | EN13236 |
| Use Environment | UK construction and infrastructure sites |
| Longevity / Wear Notes | Designed to manage core wear in abrasive cutting conditions |
Variations Table
| Diameter | Bore | Max RPM | Variation Code |
|---|---|---|---|
| 300mm | 20mm | 6400 rpm | D18-300/20 |
| 350mm | 25mm | 5400 rpm | D18-350/25 |
| 400mm | 20mm | — | D18-400/20 |
| 400mm | 25mm | — | D18-400/25 |
| 450mm | 25mm | 3400 rpm | D18-450/25 |
Recommended Saw Type by Blade Size – OTEC D18
| Blade Size | Bore | Recommended Saw Type | Typical Site Use |
|---|---|---|---|
| 300mm | 20mm | Petrol cut-off saw / bench saw | Slabs, blocks, general site cutting |
| 350mm | 25mm | Floor saw | Continuous cutting, controlled site work |
| 400mm | 20mm | Petrol cut-off saw | Deep cutting in concrete and abrasive materials |
| 400mm | 25mm | Floor saw | Long straight cuts, infrastructure work |
| 450mm | 25mm | Floor saw | Heavy-duty cutting, highways and large pours |
The Multi Purpose Diamond Blade – Super Premium – OTEC D18 is suitable for:
-
-
Reinforced and hard unabrasive concrete
-
General construction materials such as slabs, kerbs, and pavers
-
Abrasive concrete products including roof tiles and sandstone
-
Asphalt, green concrete, render, cement screed, and lignacite blocks
-
Material Suitability Table – OTEC D18
| Material Category | Typical Materials Included | Suitability |
|---|---|---|
| Metal | Exposed steel, RSJs, sheet metal, ductile iron pipe, rebar, fibreglass, plastic pipe | ❌ |
| Very Hard | Granite, engineering bricks, hard clay products, hard natural stone, very hard concrete | ✔ |
| Concrete | Limestone and flint aggregate, reinforced concrete, hard unabrasive concrete products | ✔✔✔ |
| General Purpose | Kerbs and slabs, medium hard bricks, yorkstone, concrete paviors | ✔✔✔ |
| Abrasive | Concrete roof tiles, sandstone, abrasive concrete paviors | ✔✔✔ |
| Asphalt | Asphalt, green concrete, render, cement screed, lignacite blocks | ✔ |
Before use
Ensure the blade type and specification are suitable for the material being cut. Inspect the blade for cracking, segment detachment, undercutting of the steel core, uneven wear, or other defects. Confirm correct rotation direction and bore compatibility with the machine spindle. Wear appropriate PPE and ensure guards are correctly fitted.
During use
Do not apply excessive force when cutting. Allow the blade to cut at its designed speed and take regular cooling breaks. If overheating occurs, reassess material suitability. A blunt blade may be refreshed by cutting a soft abrasive material such as brick or block. Ensure the material being cut is firmly secured and frequently inspect the blade for damage.
Wet cutting
If wet cutting is used, ensure a continuous and adequate water supply to both sides of the blade.
Is the D18 suitable for reinforced concrete?
Yes. Reinforced and hard unabrasive concrete are primary application areas for the D18.
Can this blade be used for abrasive materials?
Yes. The under cut protected segment design supports controlled cutting on abrasive materials such as roof tiles and sandstone.
Is the D18 suitable for asphalt cutting?
Yes. Asphalt and related materials fall within the intended multi-purpose application range.
Can the D18 be used for metal cutting?
No. The D18 is not suitable for metal, exposed steel, or rebar.
Is this blade compliant with UK safety standards?
Yes. The D18 is manufactured in accordance with EN13236.
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