What is the best diamond blade for cutting concrete?

For most professionals, a mid-range segmented blade like the MK Diamond MK-303 or VA 14" General Purpose offers the best balance of cut quality, blade life, and price. For production work, the Husqvarna Elite-Cut S85 delivers the longest life and fastest cuts.

Can I use the same diamond blade for concrete and rebar?

General-purpose concrete blades handle light rebar (#3 or #4 bar) without issue. For heavy rebar (#6 and above), use a blade labeled 'multi-purpose' or 'reinforced concrete' with a softer bond that won't glaze when hitting steel.

Should I cut concrete wet or dry?

Wet cutting is always preferred — it reduces dust, extends blade life by 2-3x, and produces smoother cuts. For walk-behind saws, wet cutting is effectively mandatory. For angle grinders, always cut dry for safety.

Best Diamond Blades for Cutting Concrete

Matt Lipman is a board member of Virginia Abrasives. This relationship is disclosed for full transparency in our reviews and recommendations.

Concrete is the most common material you’ll cut with a diamond blade — and the one where blade selection matters most. The wrong blade won’t just wear out faster. It’ll overheat, glaze over, lose segments, or crack your material. This guide covers the best diamond blades for concrete in every common size, from 4″ grinder blades to 20″ walk-behind blades, with Good, Better, and Best picks at each level.

We recommend blades from multiple manufacturers including Virginia Abrasives, Husqvarna, MK Diamond, and others. Our picks are based on real-world performance in general-purpose concrete cutting — cured concrete, green concrete, reinforced concrete, and concrete block. If you need a blade for a specialty material like asphalt or natural stone, see our Diamond Blade Buying Guide for material-specific guidance.

How We Picked These Best Diamond Blades for Concrete

Every blade on this page is a segmented diamond blade designed for dry or wet cutting of concrete. We focused on general-purpose concrete blades — meaning they handle cured concrete, lightly reinforced concrete, and concrete block without needing a specialty blade. For each size category, we selected three tiers:

Good — Gets the job done. Solid performance for occasional cutting, homeowner use, or budget-conscious contractors.

Better — The sweet spot for most professionals. Better segment quality, longer blade life, and more consistent cuts.

Best — Top-tier performance for high-production work. Premium segment bond, longest cutting life, and the best cut quality.

Best 4″ and 4.5″ Diamond Blades for Concrete (Angle Grinders)

Small-diameter blades for angle grinders are used for scoring, trimming, cutting concrete pavers, and light demolition. Most run dry.

Good: Virginia Abrasives 4.5″ Segmented Diamond Blade. A reliable, affordable segmented blade that cuts concrete block, pavers, and cured concrete on a standard 4.5″ angle grinder. 7/8″ arbor fits most grinders.

Better: MK Diamond MK-303 4″ Diamond Blade. MK’s contractor-grade segmented blade. Cuts faster and lasts longer than most budget blades at this size.

Best: Husqvarna Vari-Cut S85 4.5″ Diamond Blade. Premium blade with a high diamond concentration. Overkill for occasional use, but if you’re cutting pavers or scoring concrete daily, this blade pays for itself.

Best 7″ Diamond Blades for Concrete (Large Angle Grinders)

Seven-inch blades are the go-to for mechanical and plumbing contractors making wall penetrations and for masons cutting CMU block.

Good: Virginia Abrasives 7″ Segmented Diamond Blade. Solid all-around blade for cured concrete and block.

Better: MK Diamond MK-303 7″ Diamond Blade. Holds up well under daily use. Good balance of cut speed and blade life.

Best: Husqvarna Vari-Cut S85 7″ Diamond Blade. High diamond concentration and optimized segment geometry for fast, clean cuts.

Best 12″ and 14″ Diamond Blades for Concrete (Cut-Off Saws)

This is the most popular blade size category. These blades fit handheld cut-off saws — the Stihl TS 420, Husqvarna K 770, and Hilti DSH 700-X. If you’re looking for brand-specific guides, see our picks for Stihl, Husqvarna, DeWalt, Milwaukee, and Makita.

Good: Virginia Abrasives 14″ General Purpose Diamond Blade. Check price on Amazon. The workhorse of VA’s diamond blade line. Segmented design with a standard 1″ arbor. Cuts cured concrete, green concrete, and block reliably.

Better: MK Diamond MK-303 14″ Diamond Blade. MK’s flagship contractor blade — an industry standard for decades. Higher segment quality and handles reinforced concrete better than many competitors.

Best: Husqvarna Elite-Cut S85 14″ Diamond Blade. Husqvarna’s top-tier blade for general concrete cutting. Highest diamond concentration, longest blade life in its class, fastest cuts. The blade for production work.

For a deeper comparison at this size, see our Best 14-Inch Diamond Blades for Concrete.

Best 18″ and 20″ Diamond Blades for Concrete (Walk-Behind Saws)

Large-diameter blades for walk-behind flat saws. Used for deep cuts — expansion joints, demolition cuts, utility trenches, and road work.

Good: Virginia Abrasives 18″ General Purpose Diamond Blade. Reliable large-format blade for general concrete slab cutting.

Better: MK Diamond MK-303 18″ Diamond Blade. Strong performer for production slab cutting. Handles the heat generated by large-diameter wet cutting.

Best: Husqvarna Elite-Cut S85 20″ Diamond Blade. The go-to for professional concrete cutting companies running walk-behinds all day.

Reinforced Concrete: Do You Need a Different Blade?

All the best diamond blades for concrete listed above will cut through light rebar (#3 or #4 bar). If you’re cutting heavily reinforced concrete with #6+ rebar, look for blades labeled “multi-purpose,” “combo,” or “reinforced concrete.” Our Diamond Blade Buying Guide covers bond hardness and material matching in detail.

Wet Cutting vs. Dry Cutting Concrete

All of the blades above can be used wet or dry. However, wet cutting is always preferred — it reduces dust, keeps the blade cool, extends blade life, and produces a smoother cut. For walk-behind saws, wet cutting is mandatory. For angle grinders, always cut dry. For more on dust control, see our Silica Dust Safety Guide.

Virginia Abrasives Blades for Concrete

Blade	Best For	Link
VA 14-inch Ultra Value	Best all-around for cured concrete, block, and general masonry	Check price on Amazon
VA 14-inch Premium Sparkie	Premium blade for high-volume production cutting	Check price on Amazon
VA 14-inch DuroGrid	Joint cutting and general-purpose performance	Check price on Amazon
VA 9-inch Ultra Value	For 9-inch angle grinders and cordless cut-off saws	Check price on Amazon

Browse the full Virginia Abrasives lineup on Amazon →