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| Brand Name: | XRTOOLS |
| Model Number: | 5 inch |
| MOQ: | 200pcs |
| Price: | $1.2-15/pcs |
| Delivery Time: | 25-30days |
| Payment Terms: | L/C, D/P, T/T, Western Union, MoneyGram |
The Problem: When hardscape contractors use standard 4.5" angle grinders to cut thick retaining wall blocks, standard pavers, or dense granite slabs, the blade simply doesn't reach deep enough. The operator is forced to cut one side, flip the heavy block over, and try to match the cut on the other side—wasting time and ruining the aesthetic of the stone. Furthermore, cutting extremely dense materials like granite with standard cold-pressed blades rips the diamonds out of the matrix, killing the blade after just a few jobs.
The Result: Massive drops in job-site productivity, uneven masonry joints due to mismatched flip-cuts, and skyrocketing consumable costs from constantly replacing burned-out blades.
Radius Deficit: A 4.5" blade mounted on a grinder with a safety guard typically only offers a 1.2-inch depth of cut, which fails to penetrate standard 2.3-inch (60mm) landscape pavers in a single pass.
Abrasive Shear: Dense natural stone (granite) generates much higher friction than standard brick. If the metal bond holding the diamonds is too soft, the granite simply shaves the metal away, releasing the diamonds before they have a chance to cut.
5-Inch (125mm) Deep-Cut Capacity: Stepping up to a 5-inch diameter provides that critical extra cutting depth. When mounted on a commercial 5-inch angle grinder, this blade allows contractors to slice cleanly through standard 60mm and 80mm paving stones in a single, perfectly straight pass, completely eliminating the "double-pass" bottleneck.
Diamond X-Series 4X Longevity: Engineered with a highly specialized, hardened metal bond specifically formulated for dense materials. The "Diamond X" matrix locks the premium industrial diamond grit tightly in place, resisting the extreme shear forces of granite and hard-cured concrete. This technology delivers up to 4X longer cutting life compared to standard cold-pressed masonry blades.
Aggressive Keyhole Segmentation: Features deep, circular "Keyhole" expansion slots. These slots absorb the immense thermal expansion generated by deep plunging cuts in thick blocks, preventing the 125mm steel plate from warping or binding, while actively funneling cooling air directly into the kerf.
| Technical Pillar | Imperial Specification | Metric Specification | Industrial Benefit |
| Diameter | 5" | 125mm | Extended reach for single-pass cuts on thick pavers. |
| Arbor Size | 7/8", 5/8", & 25/32" | 22.23mm, 15.8mm, 20mm | Triple-compatibility for all major global angle grinders. |
| Blade Geometry | Segmented (Keyhole) | Segmented (Keyhole) | Maximum thermal relief for deep, high-friction cuts. |
| Durability Rating | Up to 4X Longer Life | Up to 4X Longer Life | Advanced matrix retains diamonds on dense granite. |
| Target Material | Concrete, Brick, Granite | Concrete, Brick, Granite | Versatile hardscaping and heavy masonry cutter. |
| Max RPM | 12,000 RPM | 12,000 RPM | Optimized for high-torque 5-inch commercial grinders. |
Hardscaping & Paving: The definitive workhorse for rapidly sizing thick interlocking pavers, retaining wall blocks, and concrete stepping stones in a single pass.
Natural Stone Fabrication: Ideal for rough-cutting dense natural stones including Granite slabs, Bluestone treads, and natural fieldstone without premature dulling.
Heavy Masonry & Concrete: Effortlessly chases cracks and cuts through cured concrete slabs, heavy clay bricks, and cinder blocks (CMU).
5-Inch Grinder Mandatory: You must use this blade on an angle grinder specifically rated for 5-inch (125mm) accessories. Never remove the safety guard on a 4.5-inch grinder to force this blade to fit; the RPMs will mismatch and pose a severe safety hazard.
Wet or Dry Operation: This blade is rated for both Wet and Dry cutting. While the keyhole segments provide excellent air cooling for dry cuts, utilizing a water feed when cutting dense granite will significantly suppress hazardous silica dust and maximize the "4X Longevity" rating.
Let the Weight Plunge: When making a deep single-pass cut into a thick block, do not force the grinder down. Let the 12,000 RPMs and the weight of the tool do the work to prevent the core from deflecting and pinching in the deep trench.
Q: The blade lists three arbor sizes (7/8", 20mm, 5/8"). How does that work?
A: The blade is manufactured with a native 7/8" (22.23mm) arbor hole, which is the standard for commercial angle grinders. It comes with precision-machined brass reduction rings (bushings) that allow you to step the arbor down to 20mm or 5/8" (15.88mm) to perfectly fit older grinders, dedicated masonry saws, or specific brand spindles.
Q: Is it normal for this 5" blade to have a lower Max RPM (12,000) than my 4.5" blade (13,200)?
A: Yes, this is basic physics. Because the 5-inch blade has a larger circumference, the outer edge travels faster. To keep the peripheral cutting speed (feet per minute) safe and optimal for the diamond segments, the maximum allowable RPM drops slightly as blade diameter increases.
Q: Can I use this blade to cut ceramic or porcelain tiles?
A: It is not recommended. This is an aggressive, segmented blade designed for rough masonry and dense stone. The segmented gaps hit the material with high impact. If you use this on delicate ceramic or glass-glazed porcelain, it will severely chip and shatter the edges. Use a continuous rim blade for tile.
Q: Will this cut through concrete reinforced with heavy steel rebar?
A: While the advanced matrix is tough, cold-pressed blades are optimized for stone, brick, and concrete aggregate. Cutting thick, solid steel rebar will rapidly strip the diamonds from the segments. If you are cutting heavy reinforced concrete, you should upgrade to a Laser-Welded diamond blade.
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