Short answer: Yes, an angle grinder cuts ceramic and porcelain tile, and it beats a manual cutter for anything that is not a straight line. Use a fine rim diamond disc, enter the glaze from the face, and finish the last inch from the back.
Why use a grinder instead of a tile cutter?
A manual score-and-snap cutter is faster for long straight cuts, and if that is all you need, use it.
The grinder wins everywhere else: curves, L-shapes around a doorframe, notches for outlets, and the round hole a pipe has to pass through. It also handles porcelain, which is dense enough to snap unpredictably in a score-and-snap cutter.
Most tile jobs need both tools. The cutter does the field, the grinder does the awkward twenty percent.
Why does tile chip along the cut?
The glaze on top and the clay body underneath are two different materials stuck together. The glaze is glass-hard and brittle. The body is softer and more porous.
When a coarse rim hits that glaze, it does not slice it. It knocks pieces out. You end up with a cut that is technically straight and visibly ragged, which is fine if it hides under trim and a problem if it does not.
Porcelain is worse than ceramic here, because it is denser and there is less give in the body to absorb the shock.
What disc do you need for tile?
A fine rim diamond disc. The rim needs to be dense enough to enter the glaze cleanly rather than break through it, and cool enough not to cook the tile at the cut line.
The Indestructible Disc 4.0 is the one built for tile in the range. It fits any standard angle grinder at 4 inch with a 5/8 arbor.
For thick natural stone, marble or granite instead of fired tile, reach for the Indestructible Disc 3.0. Its segmented rim vents heat, which is what dense stone needs.
How do you cut tile without chipping the edge?
- Mark on tape. Run painter's tape along the line and mark on the tape. It supports the glaze and your pencil line stays visible.
- Clamp it down. A tile that shifts mid-cut takes a chunk of glaze with it.
- Start slow, and start on the face. Let the disc find the line before you commit to speed.
- Do not cut through in one pass. Two or three passes, each a little deeper, beat one heavy pass every time.
- Finish the last inch from the back. The exit edge is where blowout happens. Flip the tile and meet your own cut from the other side.
- Wet it if you can. Water controls heat and kills the dust. Tile dust is silica, and silica is not something to breathe.
What about cutting a hole for a pipe?
Mark the circle, then cut a series of straight lines from the center outward to the edge of the circle, like slices of a pie. Knock the pieces out one at a time, then work around the circle to clean the edge. It is slower than a hole saw and needs no extra tool.
Do you need a wet saw instead?
For a full floor of large format porcelain, a wet saw earns its rental fee: it is faster, cleaner and easier on the tile.
For a bathroom, a backsplash, or twenty cuts around fixtures, a grinder with the right disc does the job without the setup, the water tray, or the rental.
Safety, because tile dust is the real risk
The chips are sharp, but the dust is what deserves respect. Cutting tile releases crystalline silica, and that damage builds quietly over years.
- Cut wet whenever possible, or work outdoors with the wind at your back.
- Wear a proper respirator, not a cloth mask.
- Safety glasses for the fragments.
- A guard on the tool, always.
The short version
Use a fine rim diamond disc, tape and clamp the tile, cut in two or three light passes, and finish the exit edge from the back. That is the difference between an edge you have to hide and one you can leave visible.
Get the disc built for tile: Indestructible Disc 4.0
