Introduction to SDS-Max Drill Bits
Zhonghuan Tools, a premier Chinese drill bit factory (中环工具), specializes in high-performance SDS-Max drill bits designed specifically for professional contractors tackling the toughest jobsites. These heavy-duty drill bits feature the robust SDS-Max shank system, ensuring optimal power transmission from rotary hammers to the cutting edge. Ideal for large-diameter drilling in reinforced concrete, masonry, and stone, our SDS-Max series delivers unmatched penetration rates and longevity, reducing downtime and boosting productivity on construction projects.
As part of our comprehensive lineup—including SDS-Plus hammer drill bits, hammer chisels for demolition, wall hole cutters, HSS step drill bits, carbide-tipped masonry bits, and professional tool kits—our SDS-Max drill bits stand out for demanding applications. Engineered with precision German-inspired flute geometry and premium tungsten carbide tips, they provide contractors with reliable tools that withstand rigorous daily use, making Zhonghuan Tools the go-to supplier for B2B professionals worldwide.
Product Features and Technical Specifications
Key Design Elements
- SDS-Max Shank: 19mm shank diameter with dual-locking grooves for 30% faster insertion/removal and secure hold under high torque.
- Carbide Tip: High-grade YG8 tungsten carbide with optimized brazing for superior impact resistance and edge retention.
- Flute Design: Aggressive 4-flute U-shaped spirals for rapid dust evacuation, minimizing clogging and heat buildup.
- Body Material: Heat-treated 40Cr alloy steel body, hardness HRC 45-48, for exceptional toughness and fatigue resistance.
- Anti-Vibration Grooves: Integrated spiral grooves reduce vibration by up to 40%, enhancing user comfort and bit stability.
Available Sizes and Variants
Our SDS-Max drill bits are offered in diameters from 12mm to 40mm, with standard lengths of 160mm to 1000mm, and extension rods for deeper drilling. Common lengths include 400mm, 600mm, and 800mm for versatile applications. We also provide hex-shank adapters for compatibility with major brands like Hilti, Bosch, and Makita rotary hammers.
Applications for Professional Contractors
SDS-Max drill bits from Zhonghuan Tools excel in heavy-duty construction tasks. Professional contractors use them for through-hole drilling in precast concrete slabs, anchor bolt installations in high-rise buildings, and embedment holes for rebar in bridge construction. They're perfect for demolition prep, such as drilling large holes for wall removal or installing ventilation systems in commercial retrofits.
- Reinforced concrete and hard aggregate drilling
- Masonry block and brick coring
- Stone and granite surface preparation
- Large-diameter dowel installations in industrial flooring
- Heavy demolition support alongside our hammer chisels
Pair them with our wall hole cutters for core drilling up to 300mm or SDS-Plus bits for lighter tasks, creating a complete toolkit for site efficiency.
Quality Standards and Rigorous Testing
Zhonghuan Tools adheres to ISO 9001:2015 quality management standards, with all SDS-Max drill bits undergoing stringent in-house testing. Each batch is subjected to impact fatigue tests (over 10,000 cycles), penetration rate evaluations on grade C40 concrete, and brazing integrity checks at 900°C. Our tungsten carbide tips meet DIN 8030 specifications, ensuring consistency comparable to European benchmarks.
Material traceability from raw alloy to finished product, combined with CNC precision grinding (tolerances ±0.1mm), guarantees defect-free performance. Third-party validations from SGS confirm our bits outperform industry averages in lifespan—up to 30% longer drilling footage per bit.
Why Choose Zhonghuan Tools SDS-Max Drill Bits
In a competitive market, Zhonghuan Tools SDS-Max drill bits offer unbeatable value: factory-direct pricing 20-30% below branded equivalents, without compromising quality. Our bits achieve 2x faster drilling speeds in hard materials due to optimized geometries, saving contractors time and labor costs. Durability is proven in real-world tests, with users reporting 50% fewer bit changes on large projects.
Backed by a 1-year warranty and responsive technical support, we prioritize long-term partnerships. Unlike generic imports, our full product range—from HSS step drills to tool kits—allows one-stop procurement, streamlining your supply chain.
Ordering and Customization Options
As an OEM/ODM specialist, Zhonghuan Tools supports custom SDS-Max drill bits with your branding, specific lengths, or flute configurations. Minimum Order Quantity (MOQ) starts at 500 pieces per size, with lead times of 25-35 days for standard orders and 45 days for customizations. Bulk discounts apply for 5,000+ units, and we ship globally via sea/air with FOB Ningbo/Shanghai terms.
Contact our sales team for quotes, samples (free for qualified buyers), or catalog downloads. Experience the Zhonghuan difference—reliable, high-performance tools engineered for professional success.