Diamond Concave Blade is made of high-quality diamonds and looks like a dish, usually with T-shaped continuous turbine rim concave blades and T-shaped segmented concave blades. Our product is designed in such a shape for the convenience of workers to cut. The edges are thicker and widened, and the cutting is fast and powerful. Diamond Concave Blade is mainly used for hand-cutting machines to engrave special shapes.
It has good performance, abrasion resistance, durability, and long service life. Our product has low density, high hardness, and good thermal conductivity, and will not be deformed due to sudden cold and heat. The cutting point of the Diamond Concave Blade is high in sharpness, smooth and flat, stable in cutting, and high in work efficiency.
Diamond concave blades are an important tool for professionals who work in the construction industry. These powerful tools are designed to cut through concrete, stone, and other hard materials with ease. They have diamond-tipped teeth that are incredibly sharp and durable, so they can easily handle the toughest of jobs.
The great things about diamond concave blades is that they come in a variety of sizes and shapes. This means that professionals can choose the blade that best suits their specific needs. Whether they are working on a large-scale construction project or a smaller renovation job, there is a diamond concave blade that is right for them.
1. T-shaped Segmented Concave Blade

|
Diameter |
Segment size |
Bore |
Whole sintered |
|
115 |
3.8*8 |
20/22.23 |
● |
|
125 |
4*8 |
● |
2. T-shaped Continuous Turbo Rim Concave Blade

|
Diameter |
Segment size |
Bore |
Whole sintered |
|
125 |
2.8*8 |
20/22.23 |
● |
|
125 |
4*8 |
● |


Diamond Concave Blade – Precision Curved Cutting Tool for Dry Cutting Applications
A Diamond Concave Blade is a specialized diamond-tipped cutting saw blade engineered for dry cutting of concave, curved, and shaped surfaces in stone, granite, marble, concrete, ceramic tile, and other hard materials. Its unique curved or "concave" edge profile allows operators to achieve smooth, controlled cuts on curved surfaces, irregular shapes, and detailed stone work - tasks that traditional straight blades struggle to perform.
This blade is widely used in stone fabrication, architecture finishing, countertop shaping, custom stone installations, and decorative detail work, making it an essential tool for professionals who demand accuracy and surface quality in dry cutting conditions.
What Is a Diamond Concave Blade?
A diamond concave saw blade features a curved cutting edge with embedded industrial diamonds in a metal or resin bond. The concave design allows the blade to follow curved contours and arc profiles without chipping or cracking the material, while maintaining consistent cutting speed and smooth surface finish.
Unlike standard circular blades, the concave profile provides a more aggressive yet controlled cutting action in areas where precision shape and curvature matter - such as radius cuts, custom stone edges, and architectural profiles.
Key Features & Benefits
🔹 Curved Cutting Geometry
The concave edge enables precise curved and shaped cuts that are difficult to achieve with flat rim or segmented blades.
🔹 Industrial Diamond Abrasives
High-grade diamond crystals embedded in the blade deliver fast cutting performance, efficient abrasion, and long service life on hard and dense materials.
🔹 Dry Cutting Efficiency
Designed for dry cutting applications, this blade minimizes water use while maintaining cutting accuracy - ideal for sites where wet cutting is impractical.
🔹 Reduced Edge Chipping
The concave design and quality bond reduce edge chipping and surface damage on delicate materials like marble and glazed tile.
🔹 Compatible with Multiple Tools
Suitable for installation on angle grinders, masonry saws, tile cutters, and dry cutting saws, depending on blade diameter and arbor size.
Applications of Diamond Concave Blades
Diamond concave blades are used in a variety of specialized cutting tasks:
✔ Curved edge cutting on granite and marble
✔ Radius and profile shaping on stone countertops
✔ Decorative stone and architectural detail work
✔ Ceramic, porcelain, or tile curved cuts
✔ Dry dry cutting applications where water isn't available
✔ Complex cuts in concrete or engineered stone
This blade fits the needs of stonemasons, countertop fabricators, flooring installers, renovation contractors, and custom stone designers.
Technical Specifications (Typical Options)
| Specification | Typical Range |
|---|---|
| Blade Type | Diamond Concave Blade |
| Cutting Method | Dry cutting |
| Cutting Profile | Concave / radius profile |
| Bond Type | Metal bond / Resin bond (varies by model) |
| Blade Diameter | 4″ / 5″ / 7″ / 9″ (varies) |
| Arbor / Bore | 5/8″-11, 20 mm, 22.23 mm (region dependent) |
| Material Compatibility | Granite, marble, ceramic, tile, concrete |
| Grit / Bond Hardness | Custom tuned for material type |
Custom sizes and bond formulas are available upon request based on saw type and material hardness.
How to Choose the Right Diamond Concave Blade
Material Hardness
Hard stones (granite, engineered stone): Use blades with softer metal bonds to expose fresh diamonds more rapidly.
Medium/Soft stones (marble, tile): Use medium-hard bonds that balance cutting speed and surface finish.
Cutting Surface
Precise curved or radius cuts: Choose blades specifically shaped for concave profiles.
General profiling: Hybrid or multi-purpose diamond blades may work - but dedicated concave blades deliver superior results.
Machine Compatibility
Ensure the blade's diameter, arbor size, and RPM rating are compatible with your grinder or saw tool.
Dry vs Wet Cutting
This blade is optimized for dry cutting, but in some materials and machines with dust control, wet cutting may still be applied if recommended by the manufacturer for heat management.
Advantages of Using Diamond Concave Blades
✔ Precision curved and shaped cuts
✔ Minimal chipping on delicate materials
✔ Fast, efficient dry cutting performance
✔ Longer blade life with industrial diamonds
✔ Smooth surface finish with less post-processing
✔ Versatile compatibility with angle grinders and dry saws
Best Practices for Dry Cutting
Always use proper PPE: eye protection, respirator, hearing protection, gloves.
Ensure adequate dust control when cutting dry.
Use steady, even pressure without forcing the blade.
Maintain consistent tool speed to avoid overheating or glazing.
Check blade compatibility with your tool's RPM rating and arbor size.
Diamond Concave Blade Application

Packing, Storage, Handling and Transportation
Diamond Concave Blade if small quantity pack in paper box, if large quantity, they are packed in polywood case before delivery.


After-sales service team

Technical Team

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