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Diamond Blade for Tile: Ceramic vs Porcelain Blade Selection Guide
The right diamond blade for tile depends on what is in the tile box: soft ceramic cuts happily with a continuous rim blade, while dense porcelain demands an ultra-thin turbo. Picking correctly means chip-free edges, fewer wasted tiles and faster work.
Match the Blade to the Tile
| Tile type | Recommended blade | Rim thickness |
|---|---|---|
| Ceramic wall/floor tile | Continuous rim | 1.8 mm |
| Porcelain tile | Ultra-thin turbo | 1.2–1.4 mm |
| High-fired stoneware | Thin turbo / waved turbo | 1.4 mm |
| Glass & mosaic tile | Continuous rim, fine diamond | 1.8 mm |
| Quarry & hard clay roof tiles | Turbo with protective teeth | 1.8 mm |
Sizes and Machines
- 105–115 mm (4–4.5"): handheld trimming, notches — angle grinder, 14,500/13,600 RPM
- 125 mm (5"): general site cutting — 12,200 RPM
- 180–230 mm (7–9"): large-format tiles, straight rips — tile saw or marble saw
- All sizes wet/dry rated; bore 20/22.23 mm (grinders) or 22.23/25.4 mm (saws)
Chip-Free Cutting Checklist
- Use the thinnest rim suitable for the tile hardness.
- Score the glazed surface before the through-cut on premium tiles.
- Keep steady, light feed — never force the blade.
- Dress glazed blades on a dressing stone to restore sharpness.
- Cut wet whenever possible: better edges, longer blade life, no dust.
FAQ
Why does my blade chip porcelain tile edges?
Either the rim is too thick/aggressive (switch to 1.2–1.4 mm ultra-thin turbo), the blade is glazed (dress it), or feed pressure is too high.
Can I use the same blade for ceramic and porcelain?
An ultra-thin turbo blade handles both. A continuous rim ceramic blade will cut porcelain but slowly and with faster wear.
How many tiles can one blade cut?
On ceramic, a quality 115 mm blade can last a full bathroom project (hundreds of cuts). Dense porcelain shortens life — 10 mm segment height blades last significantly longer than 7 mm.
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