SUBORUI Manufacturer DIN338 Fully Ground M35 Co5% Metal Cobalt Hss Twist Drill Bit for Metal Stainless Steel Drilling
135° split point, superior red-hardness for high-torque drilling in structural steel reinforcements.
Engineered for industrial masonry preparation, concrete grinding, structural steel fabrication, and rebuilding operations. All configurations support private labeling and volume container freight.
135° split point, superior red-hardness for high-torque drilling in structural steel reinforcements.
Precision internal threading taps for maritime machinery, maintenance docks, and field service.
Imperial dimensional profiling for regional civil projects following American fraction standards.
Rapid-insertion 1/4" quick-release hex shank optimized for high-speed cordless impact tools on job sites.
Amber-finished high-speed steel engineered for high thermal loads without losing cutting edge hardness.
Reinforced fiberglass matrix disc designed for cutting reinforcing rebar and steel structural columns.
Hot-pressed diamond matrix rim guaranteeing chip-free cutting of high-density tiles and masonry facades.
Full thread remediation kits built for structural restoration workshops and metal fabrication yards.
A comprehensive examination of aggregate abrasion, humidity stress, and building rehabilitation dynamics across the Ouest Department of Haiti.
Mortar used throughout historical and contemporary structures across Port-au-Prince—such as Turgeau, Pacot, and Delmas—often contains non-washed river sand with variable quartz contents and crushed calcareous limestone. Our custom OEM diamond tuck point blades feature laser-welded sandwich segments and cobalt-bronze alloy matrices engineered to resist friction glazed burnishing while removing deteriorated mortar without spalling adjacent fired-clay brick or fragile volcanic tuff masonry.
Proximity to the Gulf of La Gonâve exposes building stock to constant marine salinity and ambient tropical humidity (often exceeding 80%). Corrosive airborne salts attack conventional steel cores, resulting in micro-cracking and blade wobble. Jiangsu WRD Tools applies an electroplated zinc-nickel passivation layer to the high-tensile 65Mn spring-steel blanks of each tuck point and diamond wheel, preventing structural core oxidation during open-site storage.
Following historical seismic disruptions along the Enriquillo-Plantain Garden Fault zone, rehabilitation protocols require precise mortar removal to a uniform depth of 20 mm to 25 mm before elastomeric seismic repointing mortar is introduced. Our tuck point configurations—available in sandwich segment widths from 6.0 mm to 10.0 mm—cut clean, square joint profiles that promote maximum adhesion of anchoring adhesives and re-grouting compounds.
| Blade Diameter | Segment Width (Kerf) | Diamond Grit / Bond System | Optimal Raking Application in Port-au-Prince | Recommended Power Tool RPM |
|---|---|---|---|---|
| 105 mm (4.0") | 6.0 mm Sandwich | 35/40 Mesh / Medium Soft Bronze-Cobalt | Historic Gingerbread structures, lime-sand mortar preservation | 11,000 – 13,000 RPM (Angle Grinder) |
| 115 mm (4.5") | 6.4 mm / 8.0 mm Triple Pin | 30/35 Mesh / Nickel-Cobalt Hard Core | Concrete block mortar joint cleanup, Delmas commercial plazas | 10,000 – 12,000 RPM (Dust Shrouded) |
| 125 mm (5.0") | 7.0 mm / 9.5 mm V-Shape | 40/50 Mesh / Segmented High-Tack Matrix | Crack chaser groove prep before structural epoxy crack injection | 9,000 – 11,000 RPM |
| 180 mm (7.0") | 8.0 mm Sandwich Dual Blade | 30/40 Mesh / Tungsten Carbide Co-Bond | Port terminal wall rehabilitation, heavy industrial perimeter foundations | 6,500 – 8,000 RPM |
Addressing real-world infrastructure challenges across commercial, historical, and municipal sectors in Haiti.
Preservation architects working on Port-au-Prince's registered Gingerbread residential structures require gentle yet rapid mortar raking. Hard, aggressive abrasives damage aged red clay bricks. WRD Tools designs soft-matrix sintered diamond tuck pointers that pulverize crumbling lime mortar without chipping brick edges, maintaining masonry integrity.
Fast-track commercial warehouses rely heavily on hollow concrete masonry units (CMU). Before exterior sealing against seasonal hurricanes, mortar joint lines must be raked cleanly. Our high-density dual-sandwich tuck pointers remove dry cementitious mortar at rates up to 35% faster than conventional abrasive silicon carbide stones, reducing worker fatigue under tropical heat.
Seaport walls and marine dry docks at the Port-au-Prince harbor suffer from chloride ion penetration that causes inner steel rebar swelling and outer concrete surface delamination. Our diamond grooving tools, paired with our M35 cobalt twist drill bits and machine taps, allow local maintenance teams to drill anchoring boreholes, clear expansion joints, and install cathodic protection anchors.
Insights for commercial hardware importers, procurement committees, and tooling wholesalers operating in the Caribbean Basin.
Hardware merchants along Boulevard Jean-Jacques Dessalines and Route de Delmas report growing demand from local contractors for long-life diamond tuck point blades. While standard abrasive resin discs wear down in minutes against abrasive cement mortar, diamond tuck point blades offer up to 80-to-1 work-life ratios, offsetting initial unit costs and reducing site downtime.
Given international shipping schedules and port clearance logistics in Port-au-Prince, tooling buyers increasingly avoid fragmented orders. Importers consolidate container capacity by bundling diamond cutting blades, HSS cobalt jobber bits, SDS concrete hammer drills, and bi-metal hole saws directly from an integrated source with Intertek factory audit validation.
Worker health regulations initiated by multinational aid organizations and private builders are establishing silica dust extraction standards in Port-au-Prince rehabilitation sites. Our blades feature precise bore tolerances (22.23 mm with 5/8"-11 threaded options) that seat flush inside commercial dust-shrouded angle grinders to prevent vibration-induced arbor wear.
Founded in March 2007 in Danyang, Jiangsu—China's primary cutting-tool manufacturing cluster—with RMB 10 million in registered capital and complete vertical production integration.
Dedicated production workshops for wood drill bits, HSS twist drills, diamond saw blades, and annular cutters under strict ISO standards.
Recognized as a High-Tech Enterprise of Jiangsu Province in 2019, supported by professional metallurgical engineers and CNC technicians.
Track record producing precision cutting tools for international brands including BOSCH, Milwaukee, DeWalt, Makita, Truper, and Heller.
Verified on-site by Intertek Group; ranked among top suppliers on Alibaba with a 4.7/5 buyer rating and annual sales exceeding RMB 80M.
Clear, direct technical answers regarding specifications, OEM production, logistics, and sea freight handling.
For standard architectural masonry built with 10 mm joint spacing, a 6.0 mm or 6.4 mm sandwich diamond tuck pointer is standard. For wider structural concrete masonry block installations, 8.0 mm to 9.5 mm segmented or triple-sandwich configurations provide one-pass clearing, reducing manual labor overhead.
Yes. We offer complete OEM brand customization. We can laser-etch your local registered trademark, dimension standards, safety ratings, and batch tracking codes onto the blade body. Packaging options include customized blister cards, hang tags, color retail boxes, or industrial multi-pack bulk cartons.
Ocean shipments from Shanghai or Ningbo to Port-au-Prince can take 30 to 45 days through tropical waters. Each tuck point blade and cutting accessory receives an anti-rust micro-oil or electroplated film, sealed within vapor-corrosion-inhibiting (VCI) interior packaging and packed into reinforced 5-ply export master cartons.
For custom diamond tuck point blades and saw blades, our factory MOQ starts at 100 to 200 units per size for standard steel bodies, or 500 units for fully branded custom color packaging. Combined tooling shipments (combining HSS drill bits, taps, and diamond tools) can be consolidated into single FCL shipments.
Send your project blueprints, arbor dimensions, diamond grit preferences, or private-label retail specifications. Our engineering export department provides official FOB/CIF quotations within 24 business hours.
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