The Dart Red Ten RT-10 is a diamond blade built specifically for cutting ceramic, porcelain and similar tiles. Available in 100mm to 150mm sizes to suit common angle grinders. A reliable workhorse for tilers who need clean, consistent cuts day in, day out.
Size
Price
QTY
150mm x 22mm
£18.94£22.73
100mm x 16mm
£10.76£12.91
115mm x 22mm
£12.96£15.55
125mm x 22mm
£15.89£19.07
The Dart Red Ten RT-10 tile diamond blade is designed with one job in mind: cutting tiles cleanly and consistently without chipping the face or burning through the edge. Whether you are working through standard ceramic wall tiles or pushing into denser porcelain floor tiles, this blade handles both with a finish that does not embarrass you in front of the client. Available in 100mm, 115mm, 125mm and 150mm with appropriate bore sizes to suit the most common angle grinders on site.
Dart has been making cutting discs and diamond blades long enough to know what tilers actually need. The RT-10 sits in their Red Ten range, which is aimed at tradespeople who want reliable performance at a price that makes bulk buying sensible. Nobody wants to be rationing blades on a large tiling job because the cost per disc is eye-watering. At this price point, you can keep a few sizes in the bag without thinking twice about it.
Where the Dart RT-10 Diamond Blade Earns Its Keep
On a typical domestic or commercial tiling job, you are making a lot of cuts. Straight cuts, angle cuts, notches around sockets and pipes. The RT-10 keeps its edge well enough that you are not reaching for a replacement every hour, which on a big job genuinely adds up in time and money. The segmented rim deals with heat reasonably well during dry cutting, which is the reality of most on-site work even if the packaging suggests wet cutting is possible.
Clean cuts on porcelain are where cheaper blades often let you down, producing a rough or chipped edge that needs dressing back. The RT-10 holds its own here. It is not a premium specialist blade for twenty-millimetre rectified porcelain slabs, but for the vast majority of tiles a tiler encounters day to day, it does the job properly.
If you are looking for a dependable dart red ten rt-10 tile diamond blade to keep stocked on the van, these are available individually or in bulk at rates that make sense for regular use.
Pro Tip: When cutting porcelain dry, let the blade do the work at a steady pace rather than forcing it through quickly, as pushing too hard generates heat that shortens blade life faster than the cutting itself.
The RT-10 is used by tilers working on wall and floor tiling in domestic kitchens, bathrooms, hallways and commercial spaces. It suits ceramic and porcelain tiles in the sizes most commonly encountered on residential and light commercial jobs. The 100mm and 115mm sizes are handy for tight work with smaller grinders, while the 125mm and 150mm discs cover faster straight cuts on larger format tiles. Relevant trades include tilers, general builders handling tiling work, and shopfitters working on retail or hospitality interiors.
Best For
Ceramic wall and floor tiles
Porcelain floor tiles
General tiling on domestic and commercial jobs
Dry cutting on site with an angle grinder
Available Sizes
100mm x 16mm bore
115mm x 22mm bore
125mm x 22mm bore
150mm x 22mm bore
Key Features
Segmented diamond rim for heat dissipation
Compatible with standard angle grinders
Consistent cutting edge retention
Suitable for dry cutting conditions
Part of Dart's Red Ten trade range
Not suitable for: Not ideal for very thick or ultra-hard stone such as granite or thick natural slate, where a more specialist blade would be needed. Not recommended for cutting glass tiles.
Fit the correct blade size for your grinder, ensuring the bore matches and the guard is in place. For dry cutting, keep the blade moving at a consistent pace along your marked line. Let the diamond do the work rather than bearing down hard on the disc.
Mark your cut clearly and use a straightedge guide where possible to avoid drift. For notch cuts around pipes or outlets, make a series of careful straight cuts into the waste area before removing the section. Check the blade for wear periodically on long cutting sessions.
Confirm the correct blade size and bore match your angle grinder model before fitting
Fit the blade securely with the guard in place and the rotation direction arrow pointing the correct way
Mark your cut line clearly on the tile face using a pencil or tile marker
Position the tile on a stable surface, ideally supported close to the cut line
Begin the cut at a steady pace, keeping the disc moving without forcing it through
Allow the blade to cool briefly between cuts during long sessions to extend blade life
Check the blade edge periodically for signs of excessive wear or damage
Can the RT-10 cut porcelain tiles as well as standard ceramic?
Yes, the RT-10 handles porcelain as well as ceramic. It performs well on standard floor and wall porcelain tiles encountered on typical domestic and commercial jobs. For very dense or large format rectified porcelain over 10mm thick, a higher specification blade would be a better choice.
Which angle grinders are these blades compatible with?
The 115mm and 125mm blades use a 22mm bore, which fits the vast majority of 4.5 inch and 5 inch angle grinders. The 100mm blade uses a 16mm bore, suited to smaller grinders. The 150mm blade also uses a 22mm bore for standard 6 inch grinders. Always check your grinder's spindle size before ordering.
Are these blades suitable for wet cutting?
These blades are primarily intended for dry cutting, which is how most tilers use them on site. Dry cutting is fine provided you keep the blade moving and allow brief cooling breaks during extended sessions. If you regularly use a wet tile saw, check whether a wet-specific blade would be more appropriate for that setup.
The Dart Red Ten RT-10 uses a segmented diamond rim bonded to a steel core, designed to manage heat during dry cutting while maintaining a clean cutting edge through ceramic and porcelain materials. The steel core is sized and balanced to run on standard angle grinder spindles. Part of Dart's Red Ten range, these blades are manufactured to consistent tolerances suitable for daily trade use.
Brand
Dart
Range
Red Ten RT-10
Available Sizes
100mm x 16mm, 115mm x 22mm, 125mm x 22mm, 150mm x 22mm
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