How to Cut a Marble Countertop

Cutting marble requires a diamond blade and constant water cooling — without water, the blade overheats and the stone chips badly. Here's the exact technique for straight cuts and cutouts.

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PRODUCTS USED & RECOMMENDED:
→ DEWALT Diamond Blade Block and Brick Dry/Wet Cutting: amzn.to/4tX1Vah
USE A CIRCULAR SAW OR ANGLE GRINDER WITH:
→ Diamond blade (continuous rim for stone — not segmented)
→ Water supply: clamp a spray bottle or use the wet-cutting mode
→ Masking tape over the cut line to reduce chipping on the top surface
For sink cutouts: drill a starter hole inside the cut line with a hole saw, then use a jigsaw or circular saw with a diamond blade. Always cut on the underside if possible — it chips on the exit side.
PRO TIP: Score the cut line first with a single light pass, then make the full-depth cut. This prevents the blade from wandering on the polished surface.
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