The Marcrist Mi650 is a professional-grade diamond blade built for cutting through all building materials. High diamond density, turbo-segment technology, and a reinforced armoured core make it a dependable choice for landscape construction, civil engineering, and general site work.
Size
Price
QTY
115mm
£14.90£17.88
230mm
£37.90£45.48
300mm x 20.0mm
£59.90£71.88
The Marcrist Mi650 is a multi-construction diamond blade designed for professionals who need a reliable concrete diamond blade that handles a wide range of building materials without slowing down. High diamond density, a 15mm segment height, and turbo-segment technology combine to deliver fast, consistent cuts on the kind of mixed-material jobs where a lesser blade would struggle or wear out early.
The blade is laser welded throughout, which means the segments stay firmly bonded to the core under the heat and stress of continuous cutting. That matters on a busy site where you are cutting stone one minute and reinforced concrete the next. Laser welding is not a minor detail here it is what separates a blade that lasts from one that sheds segments prematurely.
The armoured core is ground and hardened, giving the blade lateral stability and reducing the flex that causes deviation on longer cuts. A reinforced steel core also helps absorb vibration, which makes the blade noticeably quieter and easier to control compared to a standard construction blade. Less vibration through the tool means less fatigue for the operator over a full day of cutting.
Where the Marcrist Mi650 Diamond Blade Gets Used
The strategically placed hole pattern in the base plate improves airflow around the cutting zone, helping to keep operating temperatures lower during sustained use. Overheating is one of the main reasons diamond segments fail early, so this design consideration has a direct impact on blade life and cost per cut.
The Mi650 is available in a wide range of sizes from 115mm up to 400mm, covering angle grinders, cut-off saws, floor saws, and disc cutters. Whether you are running a 115mm angle grinder on blockwork or a 400mm floor saw through reinforced concrete, there is a size to match your tool and bore configuration.
Segment Height and Safety
The 15mm segment height gives you a meaningful amount of cutting depth before the blade reaches the end of its usable life, and it also contributes to safe operation by maintaining the correct geometry between the segment and the core throughout the blade’s working life. A shallow segment that wears down quickly not only costs more in replacements it also increases the risk of the core contacting the material.
The Mi650 is a genuinely well-specified concrete diamond blade at a competitive price point. It is the kind of blade that landscapers, civil engineering contractors, and general builders reach for when they want performance without paying premium prices for a brand-name specialist blade. The combination of high diamond density, armoured core, and turbo-segment geometry puts it comfortably ahead of budget blades, while the price keeps it accessible for everyday site use rather than reserved only for large projects.
Pro Tip: Always match the blade bore and arbor size to your machine before fitting running a Mi650 on an incorrect bore size with a loose reducer causes wobble, shortens blade life significantly, and creates an unnecessary safety hazard.
The Marcrist Mi650 is used across landscape construction, civil engineering, paving, and general building work. It cuts concrete, reinforced concrete, block, brick, stone, and other hard building materials, making it a practical choice when you are moving between different substrates on the same job. It suits angle grinders, disc cutters, cut-off saws, and floor saws depending on the size selected.
Best For
Reinforced concrete cutting
Block and brick work
Stone and paving
Landscape construction
Civil engineering
General multi-material site cutting
Compatible With
Angle grinders (115mm, 125mm)
Disc cutters and cut-off saws (150mm 230mm)
Floor saws and table saws (300mm 400mm)
Standard 20mm, 22.2mm, 25.4mm, and 30mm bore fittings
Key Features
15mm segment height
High diamond density segments
Turbo-segment technology
Laser welded construction
Armoured and hardened steel core
Self-cooling hole pattern in base plate
Reduced vibration and noise
Not suitable for: Not suitable for cutting timber, plastics, or non-mineral materials. Check the maximum operating speed of your machine against the blade rating before use do not exceed the blade's rated RPM.
Fit the correct bore size to your machine and ensure the blade guard is in position before starting. Let the blade reach full speed before contacting the material, and apply steady forward pressure rather than forcing the cut. Allow the diamond segments to do the work.
For extended cuts in reinforced concrete or dense stone, periodically dress the blade on an abrasive material such as sandstone or a dressing block if you notice the cutting rate slowing. This exposes fresh diamond and restores cutting performance. Keep cuts as straight as possible to avoid lateral loading on the blade, which can cause premature core stress.
Check the blade bore matches your machine spindle and select the correct size reducer if needed.
Confirm the blade's maximum RPM rating is not exceeded by your machine's operating speed.
Fit the blade securely with the blade guard in place and the arrow on the blade matching the direction of rotation.
Bring the machine to full operating speed before contacting the material.
Apply firm, steady forward pressure and allow the diamond segments to cut without forcing.
For deep cuts in reinforced concrete, use a series of progressively deeper passes rather than a single full-depth plunge.
If cutting rate slows noticeably, dress the blade on an abrasive material to re-expose the diamond.
Allow the blade to cool periodically during extended use do not plunge into water immediately after dry cutting.
Can the Mi650 cut reinforced concrete with steel rebar?
Yes. The Mi650 is specifically designed for reinforced concrete and handles steel rebar without issue. The armoured core and high diamond density segments are built to cope with the intermittent hard contacts that rebar cutting involves.
What bore sizes are available and does the blade come with a reducing ring?
The Mi650 is available in bore sizes including 20mm, 22.2mm, 25.4mm, and 30mm depending on the diameter selected. Check the specific variant when ordering to confirm the bore size suits your machine. Reducing rings are not always included, so confirm compatibility with your tool before ordering.
Is the Mi650 suitable for wet or dry cutting?
The Mi650 is designed primarily for dry cutting with the self-cooling hole pattern in the base plate helping manage heat during use. Check the blade specification for your chosen size to confirm wet or dry suitability before use.
The Marcrist Mi650 uses a hardened and ground reinforced steel core with a strategically placed hole pattern to promote airflow and reduce heat build-up during dry cutting. Segments are laser welded to the core for a secure bond under high-stress cutting conditions. The turbo-segment profile increases the surface contact rate with the material, improving cut speed compared to a standard segmented blade. Segment height is 15mm.
20mm, 22.2mm, 25.4mm, 25mm, 30mm (varies by diameter)
Application
Multi-construction, reinforced concrete, block, brick, stone
Box Quantity
1
Size
115mm, 125mm, 150mm, 180mm, 230mm, 300mm x 20.0mm, 300mm x 20mm, 300mm x 22.2mm, 300mm x 25.4mm, 350mm, 350mm x 20mm, 350mm x 22.2mm, 350mm x 25.4mm, 350mm x 25mm, 400mm, 400mm x 20mm, 400mm x 22.2mm, 400mm x 22mm, 400mm x 25.4mm, 400mm x 30mm
Box Quantity
1
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