Last reviewed by James Vandegrift, Co-Founder — May 2026
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How to Cut Tile: Wet Saw, Angle Grinder, and More
KV Tileworks LLC · Sanford, FL · 2026
For straight cuts, a wet saw is the professional standard; for curves and notches, an angle grinder with a diamond blade is the right tool, and your choice of blade, feed speed, and cooling technique determines whether the cut comes out clean or chips.
Every cut you make in tile will be visible in the finished job. Either you see it directly on an exposed edge, or you see it indirectly in how well the grout joint lines up. Sloppy cuts mean sloppy joints, and there is no grouting your way out of that.
There are four tools that handle 95% of tile cutting situations. Knowing which one to reach for, and how to use it, is what separates a clean install from one that looks off.
The Wet Saw: Your Primary Tool
A wet saw is a table saw with a diamond blade and a water-cooling system. Water keeps the blade from overheating, which controls chipping and extends blade life. For any straight cut, this is the right tool. Full stop.
The quality of your cut comes down to three things: blade selection, water level, and feed rate.
Match the Blade to the Material
Porcelain is dense and unforgiving. Use a continuous rim diamond blade specifically rated for porcelain. A segmented blade will chip the face. For large-format porcelain (24x24 and bigger), use a turbo rim or a premium continuous rim blade with a higher diamond concentration. Cheap blades leave micro-fractures you can feel with your thumbnail.
Ceramic is softer. A standard continuous rim diamond blade handles it fine. You can use a segmented blade on ceramic without major chipping, though we still prefer continuous rim for face cuts.
Natural stone depends on the type. Soft stone like travertine or limestone cuts easily. Harder stones like granite and quartzite need a blade rated for those materials. Look for blades labeled "hard stone" or "granite." Never use a general-purpose blade on granite and expect a clean edge.
Water Level, Feed Rate, and Supporting Large Tiles
Keep the water reservoir full enough that the blade stays wet through the entire cut. If you can see the blade surface drying out, you will start chipping. On hot Florida job sites in summer, the water evaporates faster than you think. Check it regularly.
Feed rate matters more than most people realize. Push the tile too fast and the blade deflects or chips. Too slow and you build up heat even with water. Find a steady pace where the saw sounds consistent, not labored. You will hear when the feed rate is wrong before you see it in the cut.
Large-format tiles (18x18 and up) need support on both sides of the blade throughout the cut. If the tile drops as it crosses the blade, you will get a chip or a crack right at the end of the cut. Use an extension table or have a second person support the far end.
Porcelain vs. ceramic: Porcelain is fired at a higher temperature and is significantly harder and denser than ceramic. It has a much lower water absorption rate, which is part of why it performs well in wet areas. That density means it shatters differently when cut. Always use a continuous rim diamond blade rated for porcelain, keep your water flowing, and go slow. A blade that works fine on ceramic will chip porcelain badly.
The Snap Cutter
A snap cutter (also called a rail cutter or score-and-snap cutter) works by scoring the tile surface with a hardened wheel, then applying pressure to break it along that score line. Simple tool, limited application.
Quality snap cutters handle most standard ceramic tiles up to 12 to 15 inches reliably. Beyond that size, a wet saw is the right tool. Snap cutters do not work on porcelain, struggle badly on large-format tile, and cannot make anything other than a straight cut.
If someone tries to use a snap cutter on large porcelain, the tile will either crack unpredictably or the score will not be deep enough for a clean break. We keep one on the truck for minor ceramic work, but the wet saw handles everything else.
- Works well for: standard wall ceramic, small mosaic sheets (scored in a section), ceramic tile up to 12 to 15 inches
- Does not work for: porcelain, stone, glass, large-format tile, any non-straight cut
- Technique tip: score in one firm, continuous pass, not multiple light passes. Multiple passes round the score groove and produce a ragged break.
The Angle Grinder
An angle grinder with a diamond blade is the tool for cuts the wet saw cannot make: notches, L-shapes, curved cuts around drains and obstacles, and any freehand shaping. It produces a rougher edge than a wet saw. But it goes places and makes shapes nothing else can.
Notch Cuts, L-Shapes, and Curves
Common situations: cutting a notch out of a floor tile where it meets a door casing, trimming an L-shape around a wall outlet box, shaping a tile to follow the curve of a bathtub apron, or cutting around a floor drain. The wet saw cannot cut a notch because the tile would need to be lifted off the table mid-cut. The angle grinder handles it in place.
Mark your cut line clearly with a pencil or fine marker. For a notch, make two straight relief cuts with the grinder to define the corners, then connect them. Make multiple shallow passes rather than trying to cut through in one go. Porcelain especially needs this approach. Forcing it through in one pass overloads the blade and chips the face.
Eye Protection, Dust Control, and Blade Guard
An angle grinder throwing tile fragments is not something you want near your face. Always wear safety glasses or a face shield. The tile shards come off fast and at unpredictable angles.
Keep the blade guard in place. It is not just for debris containment. If a diamond blade develops a crack and fragments at speed, the guard is what keeps the pieces from becoming projectiles.
For dry grinding outdoors, position yourself upwind. Grind wet whenever you can by using a spray bottle to keep the cut surface damp. It controls dust and keeps the blade cooler.
Never dry-cut tile indoors without ventilation. Tile dust, especially from porcelain and stone, contains crystalline silica. Inhaling it over time causes silicosis, a permanent and progressive lung disease. Outdoors in open air is acceptable for occasional cuts. Indoors, always use a wet saw with water to suppress dust, or at minimum a HEPA-filter respirator rated for silica dust (N95 minimum, P100 preferred). This is a serious occupational health risk, not a preference.
The Oscillating Tool
An oscillating multi-tool fitted with a diamond-grit blade handles cuts in tight spots where no other tool fits. It does not cut fast, and the edge quality is rougher than a wet saw, but it works where nothing else can reach.
Most common use on our jobs: trimming the bottom of door casings so tile can slip underneath cleanly, cutting a small section of already-installed tile that needs adjustment, or getting into a corner where the wet saw table does not give enough clearance. In bathroom remodels, we also use it to cut around toilet flanges that are set too high after a tile-over situation.
Work slowly and let the blade do the cutting. Pushing hard on an oscillating tool generates heat and chews through blades fast. Keep steady, light pressure and move at a pace where you can see the cut progressing cleanly. For porcelain, this is slow work. For ceramic, it is more forgiving.
Cutting Circles and Pipe Holes
Two situations come up constantly: small pipe penetrations (supply lines, shower valve stems, tub spout) and large circles for toilet flanges. They need different approaches.
Pipe Penetrations Up to About 1.5 Inches
Use a diamond hole saw of the correct diameter, mounted in a drill. Mark the center of the hole, dimple it with a punch or a carbide scribe so the bit does not walk, and drill at low speed with water or a wet sponge to keep the bit cool. Start the hole at an angle to establish the circle, then straighten up once the rim has bitten in. Forcing the speed on porcelain will pop the tile.
The finished hole will be hidden under an escutcheon plate or cover flange, so the edge does not need to be perfect. What matters is that the tile does not crack during drilling. Slow speed, steady pressure, water cooling.
Toilet Flanges and Floor Drains
For toilet flanges, the circle is typically 6 to 7 inches depending on the tile layout. You cannot drill that with a hole saw in most cases. The method that works: mark the full circle on the tile with a compass. Cut the tile in half straight through the center of the circle on the wet saw. Now you have two pieces, each with a semicircle marked on it. Use the angle grinder to grind out each half-circle, following the line. The two halves go back together around the flange and the joint falls under the toilet base.
For round floor drains in showers, the same approach works. Mark the circle, split the tile through the center of it, grind each half. If the drain is in the corner of a tile rather than the center, you may only need to notch one tile instead of cutting two.
Cut Quality and Your Grout Joint
Here is the connection most homeowners do not think about: your grout joint width is set by your layout and spacers, but the straightness and consistency of your cut edges determines whether that joint looks uniform or wanders. A chipped, uneven cut edge creates a variable joint that no amount of careful grouting will fix.
On the wet saw, a blade that is worn or wrong for the material produces micro-chips along the cut edge. Those chips make the tile sit slightly off from the adjacent piece. By the time you grout, the joint looks inconsistent even if the spacers were perfect. This is why we replace blades before they are fully spent, not after they start producing bad cuts.
We cut every tile on every job we do. The cutting is part of the finish quality. A bad cut on a border piece at the end of a run is still visible in the finished floor. We treat every cut like it is going in the center of the room.
If you are planning a tile project in the Sanford, Lake Mary, or broader Central Florida area and want clean cuts and tight joints throughout, reach out for an estimate. We handle the full job from substrate to grout.
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