Explore our core engineering catalog designed for demanding metalworking, aerospace, and precision CNC routing applications.
Expertly optimized single flute design with an extra large chip pocket. Ideal for high-speed machining of aluminum alloys, plastics, and non-ferrous metals.
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Precision-manufactured cylindrical rotary burr providing maximum material removal rates on carbon steel, cast iron, and hardened dies.
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Engineered with micro-grain carbide tips for sharp, high-contrast, long-lasting engraving profiles on electronics substrates and decorative metals.
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Ultra-precise ball geometry designed for complex 3D profiling, mold-making finishing passes, and curved surface contouring.
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Unmatched drilling speed and hole quality. Optimized point geometry prevents walking and minimizes thermal stress in tough alloys.
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High-speed steel alloyed with cobalt to offer extreme hot hardness. Designed for drilling through high-tensile stainless steels and titanium.
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Spherical cutting geometry for efficient internal contouring, cavity enlargement, and material relief in tooling and foundry sectors.
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Wide, deep flute design custom-engineered to handle non-ferrous aluminum without loading, melting, or chip packing.
Technical SpecificationsSlotting represents one of the most mechanically demanding operations in CNC metal cutting. Unlike peripheral profiling, a slot end mill cutter operates with full radial engagement (ae = D). This 100% engagement severely limits chip clearance, restricts coolant access, and generates localized thermal concentrations that can rapidly degrade carbide cutting edges.
Standard off-the-shelf end mills often fail under these conditions, leading to premature fracture, poor wall perpendicularity, and unacceptable surface finishes. To counter these challenges, custom slot end mill cutters feature specialized engineering designs such as variable flute spacing, variable helix angles, and tailored core reinforcement. These modifications control harmonics, stabilize tool deflection, and ensure consistent chip evacuation even in deep, blind cavities.
Tailored tooling geometries developed to meet localized engineering challenges across the world's most advanced manufacturing regions.
Machining complex structural spars, engine cowlings, and interior profiles from Titanium (Ti-6Al-4V) and Inconel. Custom slot end mills utilize AlTiN coatings and customized corner radii to mitigate stress concentration points, ensuring compliance with strict aviation structural standards.
Focused on rapid manufacturing cycles for engine heads, gearbox housings, and suspension components. European markets demand highly predictable tool life curves and compatibility with Minimum Quantity Lubrication (MQL) systems to support lean manufacturing and green footprints.
High-speed machining of hardened tool steels (HRC 50+) and abrasive composite materials for phone casings and optics molds. Our tools provide sub-micron surface finishes and sub-micron dimensional tolerances to eliminate the need for secondary manual polishing.
Comprehensive solid carbide and twist drill line designed and manufactured under ISO-compliant process protocols.
Widely used in machinery, automobiles, ships, chemicals, and process engraving. Ideal for cleaning flash, burrs, and welds on casting, forging, and welding parts.
Designed with exceptional hardness and wear resistance. Excels in a variety of milling operations, providing stable cutting performance and extended tool life.
Made from high-quality carbide rods and ground by professional grinders. Built for high performance, accuracy, and efficiency in metalworking.
Unique round nose design allows for smooth and efficient machining of curved surfaces and irregular shapes on stainless steel and hard materials.
Headquartered in Guanghan, Sichuan Province, China, we have become an industry leader serving mining, construction, aerospace, oil and gas, and advanced manufacturing sectors.
Our team consists of 120+ dedicated professionals who are well versed in the intricacies of tungsten carbide manufacturing, ensuring our products meet the highest standards of precision and durability. Through continued investment in research and development, we strive to be at the forefront of technological advancement, providing our customers with cutting-edge custom tooling and slot end mill configurations.
How we transform raw chemical compounds into world-class solid carbide tools under strict micro-metallurgical quality controls.
Homogeneous mixing of high-grade tungsten carbide powder, cobalt binder, rare metal grain-refiners, aviation gasoline, and carbide balls.
The wet mixture is carefully dried to strip out the aviation gasoline, adding high-purity ginseng gum to form cohesive granules ready for compaction.
Compaction of dried powder in high-precision die presses or cold isostatic presses (CIP) to achieve the specified green state density.
Thermal sintering of the carbide blank in vacuum/HIP furnaces at up to 1450°C, compressing microporosities and setting core hardness.
Using advanced 5-axis CNC grinding machines (ANCA, Walter) to carve custom helices, rake angles, relief angles, and slot geometries.
A laser-scanning dimensional check verifies run-out, core diameter, tooth profile geometry, and substrate cobalt concentration.
Modern manufacturing requires slotting tools that can withstand high thermal loads without structural softening. N&D utilizes a sub-micron grain carbide structure (grain sizes under 0.5 μm) containing 10% to 12% cobalt content. This balance delivers both ultra-high hardness (up to 1600 HV30) and high toughness to withstand the shock of intermittent cut entries.
| Material Substrate Class | Cobalt Content (%) | Grain Size (μm) | Hardness (HV30) | Primary Application Target |
|---|---|---|---|---|
| Micro-grain Carbide (ND-10) | 10.0% | 0.6 μm | 1550 | Carbon steel, cast iron, dry milling |
| Ultra-fine Carbide (ND-12) | 12.0% | 0.4 μm | 1680 | Superalloys, hardened steel (up to HRC55) |
| Nano-grain Carbide (ND-EX) | 9.0% | 0.2 μm | 1850 | Micro-milling, hard graphite, ceramics |
China is home to the world’s most robust tungsten supply chain ecosystems. Located in Guanghan, Sichuan Province, N&D leverages direct regional access to high-grade ammonium paratungstate (APT) raw materials. This eliminates international raw material procurement dependencies, insulating our production schedules from geopolitical bottlenecks.
Our internal vertical integration (wet grinding to PVD coating) enables a fast response cycle. While standard custom tools take up to 6–8 weeks elsewhere, N&D designs, grinds, coats, and delivers custom slot end mill prototypes within 15–20 business days. Excellent logistics links to global hubs in Chengdu and Shanghai facilitate reliable air and sea shipping worldwide.
Comprehensive customization solutions designed to adapt tooling geometries to your machine configuration.
As a one-stop solution provider, we focus on providing customized carbide tooling. From blueprint adjustments to unique flute counts and cooling options, we match your target performance.
Our ultra-fine grain structures provide excellent resistance to wear, mechanical deformation, and thermal expansion. This ensures stable cutting performance and consistent slot sizing.
By optimizing chip flow and heat dissipation, our slot mills allow for deeper axial passes. This shortens cycle times while maintaining high surface finish quality and long tool life.
Stay informed about the latest advances in sustainable manufacturing, raw material developments, and tooling technology.
In 2023, the global call for sustainable development reached a new level, and companies in various industries strove to incorporate environmental protection into their development strategies. One of the leading companies is a well-known manufacturer of tungsten carbide. The manufacturer has always been at the forefront of sustainability, prioritizing environmental protection as it continues to expand its operations.
Published: 2024-09-29The tungsten carbide industry currently faces numerous challenges that impact its operations and growth. Tungsten carbide is a versatile material known for its hardness, wear resistance and corrosion resistance and is widely used in various industries including manufacturing, mining, construction and aerospace. However, the industry is grappling with several issues that pose significant obstacles to its progress.
Published: 2024-09-29In the world of machining and metalworking, the right tools can make all the difference. That’s why we’re excited to introduce our latest innovation in drilling technology – the Tungsten Carbide Twist Drill. This cutting-edge twist drill is designed to deliver unparalleled performance and efficiency, making it an essential tool for a variety of applications. Tungsten carbide twist drills are a game changer in the world of drilling tools.
Published: 2024-09-29Frequently asked technical questions regarding custom slot end mill selection, geometry, and feed rates.
Explore the full selection of custom tungsten carbide tools from our manufacturing facility.
Renowned for exceptional hardness and wear resistance. Excels in non-ferrous slotting and deep pocketing operations.
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Designed with optimized cutting edge profiles for deburring internal radiused profiles and weld seams.
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Type E oval rotary burrs engineered for chamfering and finishing intricate dies, molds, and pattern castings.
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Engineered for high durability and minimal loading. Offers standard and customized options to suit hand tools and CNC spindles.
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High-rigidity design ensuring minimal tip deflection during high-RPM detail etching and fine lettering.
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Combines peripheral and end-cutting profiles, ideal for complex slot radius blending and profile transitions.
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Optimized cutting geometry for smooth metal removal in deep mold pockets and tight-access castings.
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Expertly optimized single flute design with an extra large chip pocket. Ideal for high-speed machining of aluminum alloys, plastics, and non-ferrous metals.
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N&D Carbide