18-Inch Diamond Concrete Blades

No. Masonry blades are typically designed for softer materials like brick and block, often with fewer or smaller diamond segments. Concrete blades feature more aggressive segment configurations and higher-grade diamond bonds to handle the abrasive aggregate found in cured and green concrete, delivering longer life and cleaner cuts on tougher material.

Yes, diamond blades are the industry standard for cutting concrete. They use diamond-impregnated segments that stay sharp far longer than abrasive blades, cut faster, and produce cleaner edges. Diamond blades are available in various bonds and segment heights to match specific concrete hardness, aggregate type, and saw horsepower for optimal performance.

An 18-inch diamond blade typically requires a walk-behind saw with sufficient horsepower and blade guard clearance to accommodate the larger diameter. Many 18-inch blades are compatible with mid-to-high horsepower walk-behind saws, so confirm your saw's maximum blade capacity and arbor size before purchasing to ensure proper fit and safe operation.

Arbor sizes vary by manufacturer and saw model, commonly including 1-inch, 20mm, and 7/8-inch to 5/8-inch configurations. Always check your specific walk-behind saw's spindle size before ordering, since an incorrect arbor fit can prevent proper blade mounting or create unsafe operating conditions during cutting.

Blade life depends on segment height, bond hardness, aggregate abrasiveness, and cutting conditions. Blades with taller segments (13mm-15mm) and higher-grade diamond bonds generally last longer through more square footage of cutting before requiring replacement. Matching the blade bond to your specific concrete mix maximizes cutting life and performance.

Some general-purpose blades handle both materials, but dedicated asphalt blades and concrete blades typically use different bond hardness and segment designs optimized for each material's abrasiveness. Using an asphalt-specific or concrete-specific blade for its intended material typically yields better cut quality and longer blade life than a general-purpose option.