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| Brand Name: | XRTOOLS |
| Model Number: | 7inch |
| 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 contractors need to expose large aggregate for polished concrete, or need to tear through heavily crystallized, brittle industrial epoxies (like old mortar or thick painted lines), standard Double-Row wheels struggle. The double rows distribute the grinder's weight too evenly, causing the wheel to "skate" or "float" over extremely hard surfaces rather than digging in. Furthermore, the inner ring of a double-row wheel often traps large chunks of broken epoxy, slowing down the grind.
The Result: Wasted labor hours pushing exhausted grinders, glazed-over diamond segments that refuse to cut, and failure to achieve the deep Concrete Surface Profile (CSP) required for pouring new self-leveling underlayments.
Insufficient Point-Pressure: More diamond segments mean less downward pressure per individual segment. On extremely hard concrete (6000+ PSI), standard wheels simply cannot generate enough localized friction to pierce the top "cream" layer.
Inner-Ring Bottleneck: When stripping thick, brittle coatings, large flakes break off. An inner ring of diamonds blocks these large flakes from escaping to the dust shroud, causing the wheel to ride on top of the loose debris.
Single-Row Point Pressure Concentration: By entirely eliminating the inner ring of diamonds, 100% of the tool's weight and the motor's downward torque is concentrated onto a single outer track. This exponentially increases the "point-pressure" (PSI) on the remaining segments, allowing the 5mm thick diamonds to aggressively pierce and shatter hard-troweled concrete and stubborn mortars instantly.
Angled Turbine Segments: The large, spaced-out segments are pitched at an aggressive angle. Rather than just grinding, they act like a high-speed turbine blade, violently shearing material and actively throwing pulverized concrete and large epoxy flakes outward into the dust shroud.
Massive 24-Hole Dust Evacuation: Engineered with a highly porous red steel core featuring two concentric rings of large cooling holes (24 holes total). Combined with the completely open inner diameter, this wheel guarantees zero clogging and massive airflow, keeping the steel core cool even under extreme single-row friction.
| Technical Pillar | Imperial Specification | Metric Specification | Industrial Benefit |
| Diameter | 7" | 180mm | Maximum aggressive footprint for commercial grinders. |
| Arbor Size | 0.9" (7/8" Compatible) | 22.23mm | Direct fit for heavy-duty 7" and 9" angle grinders. |
| Segment Thickness | 0.2" | 5mm | Extended lifespan under extreme point-pressure loads. |
| Segment Design | Single Row (Angled) | Single Row (Angled) | Maximizes downward digging force and debris ejection. |
| Core Venting | 24-Hole Dual Ring | 24-Hole Dual Ring | Absolute maximum airflow to prevent thermal warping. |
| Max RPM | 8,600 RPM | 8,600 RPM | Safely handles the brutal torque of 15-Amp motors. |
Deep Aggregate Exposure: The absolute best tool for aggressively grinding away the top "cream" layer of a concrete slab to expose the large underlying aggregate for high-end polished concrete floors.
Aggressive CSP Profiling: Creating a deep, heavily textured Concrete Surface Profile (CSP 4 to 5). This rough mechanical profile is strictly required before pouring thick self-leveling underlayments, cementitious urethanes, or heavy trowel-down epoxies.
Thick & Brittle Removal: Effortlessly shattering and clearing thick, hardened ceramic tile thinset, old brick mortar, and heavy thermoplastic traffic lines.
Mandatory Rigid Grip: Because all the grinding force is concentrated on a single outer row, this wheel is highly aggressive and prone to "biting" or catching on uneven joints. The operator must maintain a rigid, locked two-handed stance using the grinder's side handle at all times.
Do Not Hover: Keep the grinder moving constantly. The extreme digging power of a single-row wheel will quickly gouge a deep trench into the concrete if left spinning in one spot for even a few seconds.
High-Capacity Dust Shroud: The massive volume of large particulate debris generated by the angled single row requires a commercial 7-inch dust shroud and a high-CFM cyclonic HEPA vacuum to prevent the workspace from being buried in dust.
Q: Should I buy this Single-Row wheel or the Double-Row wheel for my warehouse project?
A: It depends entirely on the required finish. If you need to quickly tear off thick thinset, expose heavy aggregate, and you want the floor to be deeply scratched and rough for a new thick pour, buy this Single-Row. If you are trying to flatten the floor and want a smoother finish for a thin epoxy paint, buy the Double-Row.
Q: Can I use this Single-Row wheel to prepare a floor for concrete polishing?
A: Yes, but only for Step 1. The Single-Row is used to aggressively open the floor and expose the stones (aggregate). However, it leaves deep gouges. After using this wheel, you must switch to a Turbo wheel or a lower-grit Double-Row wheel to smooth out the gouges before you begin using resin polishing pads.
Q: Why does this wheel have 24 holes when others only have 6 or 8?
A: Because a single-row wheel digs much deeper per pass than a double-row wheel, it generates significantly more loose debris. The 24-hole dual-ring design acts as a massive vacuum relief system, ensuring that the heavy volume of concrete dust is sucked through the core instantly rather than being trapped under the spinning wheel.
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