IDEAL CERAMIC RIM BLADE [ID CRB7] [7"] [180 X 1.6 X 8MM] CIRCULAR SAW ACCESSORY - 30069

Standard segmented diamond blades are designed for general masonry and concrete. The IDEAL ID CRB7 features a continuous rim with a vitrified diamond bond specifically engineered for hard, brittle materials like sintered stone, porcelain, and ceramic tile. This design virtually eliminates edge chipping — a common problem with general-purpose blades — and delivers the clean, polished cut edges that professional tiling work demands. The slim 1.6mm kerf also reduces waste and cutting effort compared to thicker, general-purpose alternatives.

The ID CRB7 is designed with a 22.23mm universal bore size, which is the industry-standard arbor diameter for 7" (180mm) angle grinders and circular saws. This means it is compatible with the vast majority of tools from leading brands. Always confirm your tool's maximum RPM rating is suitable for a 180mm blade before use, and ensure the blade guard is properly fitted for safe operation.

Absolutely. While the ID CRB7 is built to withstand the rigours of professional, high-volume tiling and stone fabrication, its ease of use and compatibility with standard tools make it equally accessible for serious DIY enthusiasts tackling bathroom renovations, kitchen splashbacks, or outdoor paving projects. The durable construction means you get professional-grade results without needing to replace the blade frequently, offering excellent value for both use cases.

Yes. The IDEAL ID CRB7 is specifically engineered for sintered stone and large-format porcelain — two of the hardest and most demanding materials in modern tiling. The vitrified bond diamond rim maintains its cutting integrity under the sustained pressure required to cut through these dense materials cleanly. For best results on large-format slabs, use a steady feed rate and ensure the material is properly supported to prevent cracking from vibration.

For prolonged cutting sessions or when working with very hard sintered stone, wet cutting is recommended to manage heat build-up and extend blade life. However, the ID CRB7's slim 1.6mm kerf and vitrified bond are designed to minimise heat generation, making short dry cuts on ceramic tile feasible in well-ventilated conditions. Always follow your tool manufacturer's guidelines regarding wet vs. dry cutting, and wear appropriate respiratory protection when dry cutting to avoid inhaling silica dust.

The ID CRB7 must be mounted according to the directional arrow printed on the blade, which indicates the correct rotation direction. Fitting the blade in reverse will cause rapid wear and can be a serious safety hazard. Ensure the arbor nut is tightened securely using the correct spanner, and always fit the appropriate blade guard before operating. The 22.23mm bore should seat flush and centred on the spindle with no play.

Chipping is almost always caused by using the wrong blade type for the material. Segmented or turbo blades designed for concrete will cause severe chipping on ceramic and porcelain. The IDEAL ID CRB7's continuous rim design is specifically engineered to eliminate this problem. The uninterrupted diamond rim supports the tile edge throughout the entire cut, preventing micro-fractures that lead to chipping. Switching to the ID CRB7 should result in a dramatically cleaner, chip-free edge on ceramic, porcelain, and sintered stone.

Glazing occurs when the bond matrix hardens over the diamond particles, preventing them from cutting effectively. This can happen when cutting very soft or non-abrasive materials. To re-dress the ID CRB7, make a few passes through a slightly abrasive material such as a soft sandstone or a dressing brick. The vitrified bond in the ID CRB7 is self-sharpening by design, meaning it continuously exposes fresh diamond as it wears during normal use on hard ceramic and sintered stone — glazing is far less common with this blade type than with resin-bonded alternatives.

Excessive vibration is typically caused by one of three issues: (1) an improperly tightened arbor nut — ensure the blade is fully seated and the nut is torqued correctly; (2) a worn or damaged tool spindle — inspect your grinder or saw for bearing wear; or (3) an uneven or unsupported workpiece — always ensure your tile or stone slab is fully supported and clamped before cutting. If the blade itself appears warped or damaged, discontinue use immediately and replace it. The ID CRB7's 22.23mm precision bore is machined for a snug, centred fit that minimises run-out when correctly installed.