SUBORUI Right Hand M2-M10 HSS Metric DIN352 Straight Flute Screw Threading Taps Drill Set for Machine Metal
- Grade: HSS M2 (6542) Ground
- Application: Threading in Concrete Anchors & Metal
Manufactured under rigorous metallurgical tolerance standards. Designed for extreme hardness retention, optimal hammer action energy transfer, and long operational service life in aggregate drilling.
Operational since 2007 in Danyang, Jiangsu—China's world-leading precision cutting tool industrial cluster. We maintain complete end-to-end quality jurisdiction over every drill bit shipped.
Our 12,000 m² operating facility, production machinery, precision measuring lab, and QA/QC management protocols are audited and certified on-site by Intertek Group, ensuring tier-one international compliance.
Equipped with continuous automated CNC flute grinding machines, salt-bath vacuum heat treating furnaces, and automatic laser etching lines, our 150+ staff turn out over 90 million drill units each year.
Tailored turnkey private label execution: precision shank branding via fiber laser marking, custom surface finishings, dynamic card inserts, blow-molded industrial cases, and bespoke retail box kits.
Incoming raw material spectrometry, core microstructure Rockwell hardness verification (HRC 63-68 depending on grade), optical concentricity inspection, and automated pull-torque load stress testing.
Our OEM manufacturing lines have produced precision cutting bits and hammer accessories for major global brands, servicing leading tool suppliers in Germany, the USA, Switzerland, and Sweden.
Official Jiangsu High-Tech Enterprise since 2019. We maintain proprietary utility patents covering anti-shock masonry drill geometry, dual-flute dust extraction channels, and carbide brazing formulations.
Understanding the interplay between tungsten carbide insert grades, brazing temperatures, and shank fatigue limits is critical to making cost-effective OEM procurement choices.
| Tool Class | Carbide Chemistry / Tip | Shank System | Optimal Aggregate Material | Brazing & Thermal Resistance |
|---|---|---|---|---|
| Standard Rotary Masonry | YG8 / YG6X Fine-Grain Carbide | Straight Cylindrical / 1/4" Hex | Brickwork, aerated concrete, soft stone | Copper brazed at 850°C; thermal rating ≤ 450°C |
| SDS-Plus Hammer Drills | YG8C Tungsten Carbide Chisel Tip | SDS-Plus (10mm, 2-slot/2-groove) | Standard reinforced concrete, masonry | Silver-copper automated braze; ≤ 600°C |
| Heavy SDS-Max Core Bit | Solid Cross-Head Multi-Cutter YG11C | SDS-Max (18mm Heavy Spline) | C30-C50 aggregate, granite, rebar strike | High-frequency vacuum induction braze; ≤ 850°C |
| Diamond Core Tile Bits | Vacuum Brazed Polycrystalline Diamond | M14 Angle Grinder / Hex Drive | Vitrified porcelain, glazed ceramic, marble | Direct furnace vacuum metallized sintering |
Strategic hardware tool purchasing managers must align their 2025–2028 supply-chain models with key market transitions driven by jobsite speed, tool longevity, and environmental safety regulations.
Traditional two-cutter chisel heads jam or shear when contacting concealed steel rebar in reinforced concrete structures. Modern commercial tenders are moving toward solid one-piece cross-tip carbide designs. The 4-cutter head divides impact load evenly, preventing tip detachment and creating rounder anchor holes for ETA-approved mechanical expansion bolts.
OEM buyers are transitioning SKU mixes to at least 40% four-cutter variations for professional product tiers.
Under tightening global health and safety guidelines (such as OSHA silica dust exposure rules in North America and EN standards across the EU), contractor demand for hollow-core dustless suction drill bits is surging. These bits suck crystalline silica dust directly through internal bit cavities connected to HEPA vacuum systems during drilling.
Sourcing suction core drill bits early gives hardware distributors a strong competitive edge in high-margin utility bids.
The jobsite shift toward high-output brushless cordless hammer drills requires bits designed for lower friction. Modern hammer bit flute profiles utilize variable progressive-pitch spiral flutes (such as 4-flute Turbo designs) to remove debris quickly without burdening motor torque. This flute geometry yields up to 35% faster penetration while saving battery life per charge cycle.
Suppliers focusing on lightweight, low-friction shank-flute transitions are outperforming conventional heavy-body tools.
Addressing core supplier evaluations, testing methods, lead times, and private-label customization options.
Partner with Jiangsu WRD Tools Co., Ltd.—your audited OEM/ODM partner for high-precision masonry bits, core saws, and industrial cutting consumables. Contact our export engineering team for custom drawings, technical specifications, or quotation packages.