Best Cement Blades for Circular Saws: Top Picks for Masonry and Fiber Cement
Cement blades for circular saws are essential when cutting brick, block, fiber cement, and dense masonry. This guide reviews top-performing options, highlighting durability, dust control, and compatibility with common saws. The selections prioritize long life, clean cuts, and safety, helping builders and DIYers choose blades that fit hard materials without sacrificing efficiency.
Summary of chosen products
- DEWALT Diamond Blade for Block and Brick, 7-Inch (DW4712) — Dry/Wet capable, continuous rim
- DEWALT Diamond Blade for Masonry, 7-Inch (DW4712B) — High performance, 5/8″ arbor
- Diablo HardieBlade Fiber Cement Blade, 7-1/4″ — PCD tipped, James Hardie approved
- Diablo Diamond Segmented Masonry Cut-Off Blade, 7″ — Fast, versatile for concrete and brick
- CRALY 6-1/2 Inch PCD Fiber Cement Blade — Thin kerf, long life for Hardieboard
DEWALT Diamond Blade for Block and Brick, 7-Inch
The DEWALT DW4712 is a 7-inch high-performance masonry blade designed for dry and wet cutting. Its continuous rim minimizes chipping on brick and block, delivering smoother cuts with reduced dust compared to segmented blades. A practical choice for both professional masonry and hobbyist projects. The blade is manufactured in China and emphasizes reliability and consistent performance in tough materials.
Key features
- 7-inch diameter with continuous rim for clean cuts
- Dry and wet cutting compatibility
- Designed for masonry materials like block and brick
- Focus on easy handling and consistent performance
DEWALT Diamond Blade for Masonry, 7-Inch (DW4712B)
This 7-inch high-performance masonry blade from DEWALT partners with 5/8″ arbors to fit a wide range of circular saws. It’s optimized for dense masonry work, delivering fast cutting with good life. The blade’s construction focuses on ease of use, making it suitable for both professional crews and serious DIYers who regularly cut brick, block, or stone.
Key features
- 7-inch diameter with 5/8″ arbor compatibility
- High performance for masonry materials
- Designed for straightforward, user-friendly cutting
- Manufactured in China
Diablo HardieBlade Fiber Cement Blade, 7-1/4″
Diablo’s HardieBlade is engineered for fiber cement and uses a PCD-tipped design for extended life when cutting HardieBoard and related materials. It emphasizes reduced dust generation and James Hardie approval, which is a strong indicator of performance and safety when cutting fiber cement. This blade is well-suited for contractors who need reliable, long-lasting cuts with less cleanup.
Key features
- PCD-tipped for longer life on fiber cement
- Reduced dust generation for safer work environments
- James Hardie approved
MASTER DEPOT 7-Inch Segmented Diamond Blade
This 7-inch segmented blade is designed for general-purpose cutting across concrete, masonry, stone, brick, and similar materials. Segment gaps aid heat management and dust removal, which helps extend blade life even during longer cuts. The ultra-thin kerf of 1.6 mm minimizes resistance, enabling fast, clean cuts with reduced vibration and noise.
Key features
- 7-inch segmented design for versatile masonry cutting
- Ultra-thin kerf for reduced resistance
- High rpm compatibility and robust construction
Diablo Diamond Segmented Masonry Cut-Off Blade, 7″
Diablo’s DMADS0700 offers a 7″ diameter for masonry and block work with a 2.4 mm kerf and a high RPM rating of 8450. This cut-off blade is tailored for dry or wet cuts in brick and block, delivering reliable performance where precision and speed matter. The blade design is oriented toward professional job sites that demand dependable cuts through tough masonry materials.
Key features
- 7″ diameter, 2.4 mm kerf
- 8450 max RPM suitable for fast cutting
- For concrete, brick, and block cutting
CRALY 6-1/2 Inch PCD Fiber Cement Blade
CRALY’s 6-1/2 inch PCD fiber cement blade is designed specifically for hardie board cutting. It features a thin kerf and a laser-cut body with expansion slots, stabilizers, and a non-stick coating to reduce heat buildup and dust. The polycrystalline diamond tips offer extended life, making it suitable for frequent fiber cement work in home remodeling and industrial settings.
Key features
- 6-1/2 inch diameter with 5/8 inch arbor
- PCD tipped for long life in fiber cement
- Thin kerf and laser-cut design for precision
Buying Guide: Cement Blades For Circular Saws
Selecting the right cement blade depends on material, tool compatibility, and work environment. Here are several purchase considerations:
- Material compatibility: Fiber cement blades (PCD-tipped) excel on HardieBoard and similar composites, while diamond segments perform well on brick, block, and concrete.
- Blade type: Continuous rims reduce chipping on masonry; segmented designs aid cooling and dust management in harder materials.
- Kerf and arbor: Thinner kerfs cut faster with less resistance but can wear quickly if misused. Match arbor size (5/8″ or 7/8″) to your saw’s spindle.
- Dust control: Blades with smoother action and reduced dust help maintain air quality; consider vacuum compatibility and tool ventilation where possible.
- Cut direction and speed: Higher RPM blades are not universal; verify your saw’s max RPM and avoid exceeding it.
- Brand and certification: Reputable brands with product approvals (e.g., James Hardie) indicate reliability and performance under specific use cases.
- Maintenance and life: PCD-tipped blades offer longer life under fiber cement cutting, but cost may be higher. Balance budget with expected usage.
In practice, for mixed jobs involving fiber cement and masonry, consider pairing a dedicated fiber cement blade for Hardieboard-like materials with a versatile segmented diamond blade for brick and concrete tasks. Always follow safety protocols, wear PPE, and ensure proper blade mounting to prevent kickback and overheating.