Industrial-Grade High-Precision CNC Tapping Bits
Versatile metalworking drill bits optimized for high-speed thread formation, minimal wear, and superior precision across ferrous and non-ferrous alloys.
💡 Our CNC drilling and tapping machines support custom non-standard designs, machine color customization, and OEM branding. Start now to purchase and customize your own equipment, please contact us.
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Features
Chipless Cold Roll Forming: Forms high-strength internal threads by plastic deformation without producing metal swarf or chips.
30-50% Higher Pull-Out Strength: Preserves unbroken metal grain fibers within the extruded boss for superior torque resistance.
Wear-Resistant TiN/TiAlN Coating: Low-friction surface coating prevents material adhesion and extends tap life in tough metals.
Precision 6H Metric Tolerance: Consistently delivers smooth, accurate, burr-free thread profiles across high-volume runs.
In-Depth Engineering Description & Technical Overview
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Overview
DUOMI High-Precision CNC Tapping Bits are engineered specifically for high-throughput metalworking applications demanding extreme thread accuracy and tool durability. Designed for seamless integration into automatic CNC tapping centers, milling machines, and dedicated drilling units, these multipurpose drill bits ensure reliable thread geometry and long service life.
Key Features & Engineering Specifications
- Micro-Grain Carbide Substrate: Premium solid carbide/HSS-Co construction delivers high thermal resistance up to 800°C.
- Precision Threading Tolerance: Achieves ISO 286 Class 6H/H7 thread standards with repeatable tolerances within ±0.02mm.
- Optimized Flute Geometry: Spiral flute design ensures continuous chip evacuation, preventing thread jamming and tool breakage in blind and through-hole applications.
- Multi-Layer Coating Technology: Advanced TiAlN/TiCN coating reduces friction co-efficient to <0.35, accelerating feed rates by up to 30%.
Compatible Materials
Engineered for high performance across diverse alloy groups: - Non-Ferrous Metals: Aluminium, Copper, Brass, Zinc - Ferrous Metals: Cast Iron, Structural Steel, Stainless Steel - Precious & Exotic Metals: Platinum, Titanium alloys, Nickel-based superalloys
Technical Advantages & Standards
- Quality Compliance: Manufactured under strict ISO 9001:2015 certified quality control and fully CE compliant.
- Throughput Efficiency: Spindle speed capabilities up to 3,500 RPM lower cycle times by 25% compared to standard HSS tooling.
- Custom Engineering: Fully customizable pitch geometries, coatings, and shank designs available for specialized OEM and B2B production lines.
Purchase & Delivery Guarantees
Direct Factory Assurance — Built, Tested, and Supported from Dongguan to Your Shop Floor
Runs on Your System
Standard GSK control (100% Fanuc G-code compatible) or optional Mitsubishi/Siemens. Direct CAD file import for code-free toolpath generation.
Factory Video FAT
Live drilling/tapping tests on your actual workpiece recorded before dispatch. Final 50% balance payment is paid only after your video approval.
40-Day Build & Rugged Crate
Guaranteed maximum 40-day manufacturing cycle. Sealed in anti-rust vacuum aluminum foil and bolted in fumigation-free timber crates (EXW/FOB/CIF).
Direct Engineer Care
Direct 1-on-1 WhatsApp group with your machine's build engineers, 12-month full warranty, and critical replacement parts dispatched via DHL within 24–48h.
Every DUOMI machine is built under a transparent 13-step factory production & responsibility chain.
Machining Samples
Real parts processed by our machines
