High-Precision M2-M12 Spiral Point Machine Taps & Tapping Bits
Factory-Direct Industrial Tapping Tools Engineered for High-Speed Threading in Stainless Steel, Steel Alloys, and Non-Ferrous Metals
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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: Industrial-Grade Machine Taps & Tapping Bits
DUOMI CNC provides premium M2-M12 spiral point machine taps and multipurpose tapping bits designed specifically for high-throughput CNC machining operations. Engineered from premium High-Speed Steel (HSS-Co / M35 / M42) and treated with specialized wear-resistant coatings (TiN / TiAlN), our tapping bits deliver exceptional dimensional accuracy and superior tool longevity under aggressive cutting conditions.
Optimized for working in through-hole and blind-hole configurations across tough materials like stainless steel (SUS304/316), alloy steels, aluminum, brass, and copper, DUOMI CNC machine taps ensure clean thread profile generation with minimal torque requirements.
Key Features & Engineering Performance
- Spiral Point Geometry: Forward-ejecting chip design prevents re-cutting of swarf and chip packing in through-hole tapping applications.
- Precision Threading Standard: Manufactured to ISO 2 (6H) and DIN 371/376 international tolerances for seamless fastener engagement.
- Specialized Stainless Steel Formulation: Enhanced cutting-edge strength and heat-resistant geometry reduce work hardening and tap breakage on tough alloys.
- Extended Tool Wear Life: TiAlN and TiN physical vapor deposition (PVD) coatings boost surface hardness up to 3300 HV, offering up to 300% longer life compared to standard HSS taps.
- High-Speed Machining Ready: Designed for operating speeds between 15 to 45 m/min depending on workpiece hardness and coolant application.
Material Compatibility & Applications
DUOMI CNC tapping bits excel in high-precision metalworking industries including automotive manufacturing, aerospace components, medical device housing, electronics enclosures, and general CNC job shops. Compatible materials include:
- Stainless Steel: SUS201, SUS304, SUS316, 17-4PH
- Ferrous Metals: Carbon Steel, Die Steel, Cast Iron, Alloy Steel
- Non-Ferrous Metals: Aluminum alloys (6061, 7075), Brass, Copper, Zinc, Platinum
Technical Specifications Summary
| Feature Parameter | Specification / Capability |
|---|---|
| Tap Size Range | M2, M2.5, M3, M4, M5, M6, M8, M10, M12 |
| Material Grade | Premium HSS-E / M35 Cobalt High-Speed Steel |
| Surface Coating | TiN, TiAlN, Bright / Vapor-Oxidized |
| Thread Tolerance | ISO 2 / 6H, 2B |
| Manufacturing Standard | DIN 371 (M2-M10), DIN 376 (M12+), ISO 529 |
| Processing Type | Machine Tapping on CNC Machining Centers, Tapping Units, Lathes |
For custom pitch requirements or full machine integration inquiries, explore our CNC Drilling and Tapping Machine Equipment options.
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
Frequently Asked Questions
We “only” do drilling & tapping. Why do customers still choose Duomi over general-purpose CNC machines?
What does “Your part defines the solution” mean in practice?
What tap sizes are included in the M2-M12 machine tap series?
What makes these spiral point taps ideal for stainless steel processing?
What thread tolerance standard do DUOMI CNC tapping bits meet?
What is the recommended tapping speed for M2-M12 machine taps?
Can DUOMI supply OEM or custom non-standard tapping tools?
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