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| Brand Name: | XRTOOLS |
| Model Number: | 115mm |
| 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 masonry restoration contractors need to remove old, crumbling mortar between bricks (tuckpointing), or when waterproofers need to widen foundation cracks before injecting epoxy, using a standard diamond blade is highly inefficient. Standard blades are too thin, requiring the operator to make 2 or 3 parallel cuts just to clear one mortar joint. Worse, operators often use the side of a standard thin blade to grind out the remaining mortar, which causes the thin steel core to flex, snap, and shatter violently under lateral pressure.
The Result: Extreme safety hazards from shattering blades, severely slow production times on brick facades, and damaged historical bricks caused by wobbly, multiple-pass cuts.
Kerf Deficit: A standard cutting blade has a kerf of 0.080" (2mm). A standard mortar joint is 0.25" to 0.375" (6mm-10mm) wide.
Lateral Shear Failure: Cold-pressed blades are designed only for straight, vertical cutting. Applying sideways (lateral) pressure to rout out a crack tears the diamond segments directly off the steel core.
Extra-Thick 0.25" (6.4mm) Matrix: This specialized blade features an exceptionally thick diamond segment. In a single pass, it instantly plows out a perfect 1/4-inch wide trench. This eliminates the need for multi-pass cutting, reducing mortar removal time by up to 60% and keeping the edges of the surrounding bricks perfectly intact.
Laser-Welded Segment Bonding: Because crack chasing and tuckpointing inherently subject the blade to lateral (sideways) twisting and grinding, the diamond segments are 100% laser-welded to the steel core. This aerospace-grade bond guarantees that the segments will never detach under extreme side-load pressure, ensuring absolute operator safety.
Aggressive U-Slot Heat Relief: The heavy-duty 115mm steel plate is engineered with deep U-slot gullets. These slots violently eject abrasive mortar sand and silica dust, keeping the thick, high-friction segments cool during continuous dry routing on high-speed angle grinders.
| Technical Pillar | Imperial Specification | Metric Specification | Industrial Benefit |
| Diameter | 4-1/2" | 115mm | Perfectly sized for tight mortar joints and agile grinders. |
| Arbor Size | 7/8" (with 5/8" bushing) | 22.23mm (15.88mm) | Fits commercial angle grinders and dedicated tuck-pointers. |
| Segment Thickness | 0.25" (1/4 Inch) | 6.4mm | Clears standard mortar joints in a single, clean pass. |
| Bonding Tech | Laser-Welded | Laser-Welded | Prevents segment loss under heavy lateral side-loads. |
| Blade Geometry | V-Shape or Flat Segment | V-Shape or Flat Segment | Optimized for chasing cracks or routing square joints. |
| Application | Dry / High-Speed | Dry / High-Speed | Engineered to withstand intense friction without water. |
Masonry Restoration (Tuckpointing): The industry standard for safely and rapidly removing old, degraded mortar from brick facades, historical stone walls, and chimney repairs before repointing.
Foundation Waterproofing: Aggressively routing and widening hairline cracks in concrete basement walls and slab foundations to create a proper V-channel for polyurethane or epoxy injection.
Control Joint Cleanout: Fast removal of old polyurea, dirt, and debris from industrial warehouse expansion joints prior to resealing.
Dedicated Dust Shroud Mandatory: Tuckpointing generates an enormous volume of hazardous respirable silica dust. This 115mm thick-kerf blade MUST be paired with a specialized Tuckpointing Dust Shroud (which fully encloses the blade) and an industrial HEPA vacuum system.
Let the Weight Do the Work: Do not force the thick blade into the mortar joint. Start the grinder, align it with the joint, and let the 13,200 RPMs mill the mortar away. Forcing the blade can cause the grinder to buck out of the joint and damage the surrounding brick face.
Depth Control: Only grind deep enough to reach solid mortar (typically 3/4" to 1" deep). Plunging the blade entirely to the arbor puts unnecessary strain on the grinder motor.
Q: Can I just stack two standard 4.5" blades together instead of buying a Tuck Point blade?
A: ABSOLUTELY NOT. This is a lethal safety hazard. Stacking blades on an angle grinder arbor defeats the locking flange. Furthermore, standard cutting blades are not laser-welded or designed for the lateral friction of routing. Stacking blades will likely result in the segments shattering and flying at bullet speeds. You must use a dedicated, thick-kerf tuck point blade.
Q: Should I choose the "V-Segment" or "Flat-Segment" version of this blade?
A: If you are chasing random, spider-web cracks in a concrete floor or wall for epoxy injection, choose the V-Segment. It cuts a perfect "V" groove that holds liquid epoxy well. If you are doing traditional brick tuckpointing (removing straight lines of mortar between bricks), choose the Flat-Segment to maintain a uniform square joint.
Q: Will this 1/4" thick blade drain my cordless grinder battery fast?
A: Yes. Turning a massive 6.4mm thick diamond matrix requires significantly more torque and power than a standard 1.2mm cutting blade. If you are using this on a cordless angle grinder, expect rapid battery drain. It is highly recommended to use a 13-Amp to 15-Amp corded angle grinder for continuous tuckpointing work.
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