Can you cut straight on granite?

Author: Kelsi Huels PhD  |  Last update: Friday, June 5, 2026

Yes. Granite can be cut wet or dry using a circular saw or an angle grinder. Cutting wet granite requires a wet-cutting saw that you can rent or buy from nearby hardware stores. Both wet and dry cutting emit fine residues that appear like a slurry substance during wet cutting and a cloud of dust for dry cutting.

Can I cut directly on my granite countertop?

Never cut directly on granite - it will dull your knife. Always use a cutting board.

How to cut a straight line in granite?

Angle grinder with a diamond blade on it. Cross square measure your opening and ensure square of existing opening. Then mark depth of cut required either to one or both sides based on cross square. Grind back granite to marked line/s gradually ensuring square edge. Finish edges and polish if desired.

Will granite crack when cutting?

Granite can break and crack under too much stress. The only thing worse than a granite piece too large is a large, cracked piece of granite. Don't do it yourself and don't cheap out on who you hire. Commit that it's a slightly bigger project and also get the chips done.

Does cutting on granite dull your knives?

Avoid using your knife on surfaces made of glass, granite, marble, or ceramic. These materials are much harder than steel and will weaken your knife's edge. Even a quick slice on a ceramic dinner plate, a marble cheese board, or a granite countertop can dull your knife.

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How do you smooth granite after cutting?

How to polish granite edges
  1. Place the granite on a flat work surface. ...
  2. Wet the edge with water. ...
  3. Attach the polishing pads to the grinder. ...
  4. Start Polishing With Grit 50. ...
  5. Move the grinder from left to right. ...
  6. Wipe down with water as you go. ...
  7. Move to Polishing With Grit 100. ...
  8. Continue this process of switching grit pads.

Do you need a special blade to cut granite?

When cutting granite, the most effective and reliable blade is a diamond blade specifically designed for stone cutting. Granite is an extremely hard and durable material, so only a blade with the hardness and precision of industrial-grade diamonds can efficiently cut through it. Best For: Dry or wet cutting granite.

Do you cut granite wet or dry?

Granite can be cut wet or dry. In either case, it's a mess, so set up a work area, with tables that can support the granite, where the work won't affect other areas of the home. Cutting wet (which will probably require buying or renting a wet-cutting saw) will create a slurry that needs to be hosed off.

How do you cut granite without chipping?

Granite generates a lot of heat, so always use water to cool the blade and control dust. Make shallow initial passes with the saw to guide the blade and prevent chipping or mistakes. Gradually increase the depth of each pass until you cut through the slab completely.

Will cutting on granite scratch it?

Even though granite is highly scratch-resistant, that doesn't mean it's entirely scratch-proof. Repeated cutting may eventually leave marks that will mar the aesthetic quality of the surface.

How do professionals cut granite?

Cutting granite is a complex task that requires precision, efficiency, and the right equipment. With BACA Systems' innovative machinery, including the Versa 5 CNC Saw, Robo SawJet M Series, and Miter X 2.0, fabricators can achieve flawless results while saving time and reducing waste.

Will Home Depot cut granite for you?

Hires a third-party contractor to measure, cut, polish and install your countertops. In many cases, this contractor will outsource portions of the work to a fourth-party, further reducing accountability, causing delays, and increasing the price.

What is the best tool to cut granite?

You'll need a powerful machine, as well as a grinder that allows you to use different types of cutting discs. Radial and table saws are the most common tools used to cut granite, as they are the most effective at this task.

What countertops can you cut directly on?

If you have quartz and granite countertops, then yes, you can cut food directly on them. Quartz is very durable and one of the hardest materials available on the market. It withstands cuts and scratches from slicing. This engineered stone is made from small pieces of stone mixed with a resin and compressed.

Is cutting granite hard?

Granite is one of the most difficult rocks to cut because it is so hard. Most saw blades will not be equipped to cut granite without damaging them. Fit your saw with a diamond-cut blade for the sake of precision and safety.

Can you place hot pans on granite?

You can put hot pans on granite with no worries if you place something underneath them. A trivet, pad or potholder will absorb the heat from the pan before it reaches the surface, preventing damage to your countertop and preserving its beauty.

Is it safe to cut on granite?

While you can cut directly on some stone countertops, it is not recommended. Granite is one of the most durable countertop materials you can buy, and it can certainly withstand cuts from a knife blade. However, if your granite has a sealer on it, cutting can eventually wear down the sealant.

How to polish granite edge after cutting?

Put a 50 grit pad into your angle grinder.

If you're working with freshly cut granite, you'll probably see saw marks along the edge. The 50 grit dial, along with other coarse buffing pads, smooths out the edge so that those saw marks are no longer visible.

What is the best homemade granite sealer?

Mineral Oil: Mineral oil is a common and natural option for sealing granite countertops.

Can granite be cut by hand?

Yes, but you need to take care and work slowly. Cutting a granite countertop requires attention, precision and a steady hand. If in doubt, or if you're not confident with precise DIY, we recommend you hire a professional to cut your granite worktop for you.

Will a diamond blade cut granite?

The three standard types of diamond blades are segmented, serrated, and continuous. All can cut granite, but they work a bit differently. Serrated blades or “turbo” blades have gullets for dissipating heat and debris, but they don't have separate segments.

Do you need a special saw to cut granite?

A circular saw with a diamond blade can be used on most types of granite. A wet-cut circular saw offers the best option for cutting granite tile by producing less dust during cutting.

How do you cut granite straight?

If you're working with sharp corners, ensure the straightedge makes a 90-degree angle with the countertop to get a straight cut. Cover the cut line with blue tape to reduce chipping as you cut. Whether you use an angle grinder or a circular saw, work the tool gently.

What is the best bit to cut granite with?

Using diamond-plated blades and bits will give a very clean and precise cut. Diamond plating is very aggressive and will provide a quick, clean cut through the stone and minimize the risk of cracking the slab.

What machine is used to cut granite?

Robo SawJet M Series – Saw & Waterjet Combination Machine

The Robo SawJet M Series combines the power of a saw and a high-pressure waterjet to deliver the ultimate cutting versatility. It's a game-changer for fabricators working with granite and other hard stones.

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