Diamond Groove Blade And tuck point blades for cutting concrete and brick wall or floor—yes, it’s a mouthful, but that’s the full product name—and it comes out of No.30 Gaoying Road, Chang'an District, Shijiazhuang, Hebei Province. In fact, the pitch is simple: fast cutting speed, long life, and very safe, stable segments. Sounds routine until you’re three stories up repointing a 1920s facade and need a tool that just won’t quit.
Two things I keep hearing: dust control and precision. Contractors want tuck point blade sets that hold kerf under heat, pair cleanly with shrouds/vacs, and don’t smear the joint. Surprisingly, real-world feedback suggests a medium-hard bond is winning in mixed lime-Portland mortars; softer bonds burn too fast; super hard bonds glaze. Also, segment safety—laser-welded > silver brazed—has basically become table stakes.
| Spec | Typical Option | Notes (≈ real-world) |
|---|---|---|
| Diameter | 4.5", 5", 7", 9" | Match grinder/saw guard and RPM |
| Kerf/Segment Width | 1/4" (6.35 mm), 3/8" (9.5 mm), 1/2" (12.7 mm) | Choose to fit mortar joint |
| Arbor | 7/8"-5/8", 22.23 mm | Adapters available |
| Bond/Grit | Med-hard, 30/40–40/50 | Mortar/brick/soft concrete |
| Max RPM | 13,300 (4.5"), 8,600 (7") | Always follow tool rating |
| Segment Tech | Laser-welded | Safety and heat resistance |
Service life? On Type S mortar we logged ≈1,800–2,400 linear feet with a 7" tuck point blade; dense brick mixed use is lower, around 1,200–1,600 ft. Your mileage, as always, depends on feed pressure, dust extraction, and operator touch.
Case 1: A Chicago facade crew swapped to a 5" medium-hard bond tuck point blade—reported ≈18% faster linear feed and fewer regrinds. Case 2: A municipal shop used the groove blade variant for expansion joints on a slab; segment wear stayed even over a weekend shift, which frankly is rare.
| Vendor | Certs/Standards | Customization | Lead Time | Notes |
|---|---|---|---|---|
| Hebei Manufacturer (Gaoying Rd.) | EN 13236, ISO 9001 (plant), ANSI B7.1 | Kerf, bond, laser-weld pattern | 7–14 days ≈ | Strong value, steady QA |
| Generic Importer A | Varies | Limited widths | 2–6 weeks | Lower upfront cost; inconsistent bonds |
| Big-Box Brand B | Broad compliance | Minimal | In-stock | Easy returns; premium price |
Customization tips: specify joint width, substrate (lime mortar vs high-strength grout), and tool RPM. If you cut mostly abrasive mortar, a harder-bond tuck point blade keeps diamonds exposed longer; for dense brick, consider slightly softer bond to avoid glazing.
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Address
No.30 Gaoying Road ,Chang'an District,Shijiazhuang,Hebei Province
Business Hours
Mon to Saturday : 8.00 am - 7.00 pm
Sunday & Holidays : Closed