Marcrist Mi850 Extreme Fast Cut Universal Diamond Blade

The Marcrist Mi850 is a universal diamond cutting blade designed to cut faster through a wider range of materials than most blades of this type. Whether you are cutting concrete, granite, natural stone, iron, or steel on site, the Mi850 handles all of it from one blade. For anyone who regularly changes blades to suit different materials, that alone saves meaningful time across a working day.

The Mi850 combines real diamond for cutting speed with synthetic diamond for longevity. The result is a blade that does not force you to choose between a fast cut and a long service life. Titanium-coated diamonds help the blade stay cool during cutting and maintain a self-sharpening edge, which means performance holds up through extended use rather than degrading quickly after the first hour.

Mi850 M-Segment Technology: What It Actually Does

Marcrist’s patented M-segment design improves airflow through the blade during cutting. Better airflow means more efficient debris removal from the cut line, which in turn produces better cooling and reduces heat buildup at the segment. The practical effect is a cleaner cut, less drag, and a blade that keeps performing when others have started to struggle. Combined with the noise suppression built into the armoured core, the Mi850 also runs noticeably quieter than a standard diamond blade of comparable size.

The armoured centre is a patented feature that adds strength well beyond what you would expect from a standard hardened core. The core is precision engineered, hardened, ground, balanced, and tensioned before leaving the factory. On site, this translates to less vibration, a smoother cut, and more confidence when pushing the blade through dense or abrasive material.

Double Laser Welded Segments

The 10mm segments are double laser welded to the core, which is the most reliable bonding method available for diamond blades. Single-weld blades can shed segments under load; double welding significantly reduces that risk. Marcrist diamond products comply with all known safety standards worldwide, so the Mi850 is approved for use wherever these safety requirements apply.

Available in a full range of sizes from 115mm through to 400mm, the Mi850 suits angle grinders, cut-off saws, and larger disc cutters depending on the diameter selected. This makes it practical across most trades: groundworkers, concreters, bricklayers, roofers, and steel fixers can all run the same blade on their existing machines.

The cost-per-cut argument for the Mi850 is straightforward. A faster diamond cutting blade means fewer cuts abandoned halfway, less time per job, and fewer blade changes across a shift. The Mi850 is not the cheapest blade upfront, but it consistently returns its cost in labour savings before it needs replacing.