Nano Rainbow HSS Machine Taps TiAlN Coated M12 1.25 Tap UNC UNF
Nano-Rainbow TiAlN Coated HSS-E Machine Taps | M2-M52 & UNC/UNF | High-Performance Colorful Taps for CNC
1. Introduction: The Four Pillars of Threading Excellence
Our Nano-Rainbow & TiCN Coated Series represents the next generation of tapping technology. As a factory-direct manufacturer, we have applied advanced physical vapor deposition (PVD) technology to our premium HSSE-M35 (5% Cobalt) substrate.
These coatings are not just for aesthetics—they provide a critical thermal and friction barrier. The Rainbow Nano-Coating is specifically designed for high-speed, high-heat environments, ensuring that the tool maintains its structural integrity while producing smooth, mirror-finish threads in the toughest materials.
2. Multi-Dimensional Coating Description (The Key Dimension)
| Coating Type | Appearance | Surface Hardness | Max Service Temp | Best For... |
| Nano-Rainbow (Multi-Color) | Vibrant Rainbow Gradient | 3300 - 3500 HV | 800°C | High-tensile alloys, Titanium, and Stainless Steel. Provides extreme heat resistance. |
| TiCN (Blue-Grey/Black) | Matte Grey/Black | 3000 HV | 400°C | Abrasive materials like Cast Iron, Tool Steel, and Ductile Iron. Excellent wear resistance. |
| TiAlN (Violet/Bronze) | Deep Violet/Bronze | 3300 HV | 900°C | High-speed cutting (Dry or MQL) where heat generation is massive. |
The Advantage of Nano-Rainbow Coating:
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Ultra-Low Friction: The smooth gradient layer reduces torque and prevents "chip welding."
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Extreme Hardness: At ~3500 HV, it is nearly 4x harder than uncoated high-speed steel.
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Thermal Shielding: Reflects heat into the chips rather than the tool core, preventing edge softening.
3. Comprehensive Metric Series (M2 - M52)
Standard DIN 371 / DIN 376 - Precision 6H Tolerance
| Size | Standard Pitch (mm) | Fine Pitch Options (mm) | Total Length (L) | Shank Ø (d) | Geometry Available |
| M2 | 0.40 | -- | 45 mm | 2.8 mm | All 4 Types |
| M3 | 0.50 | 0.35 | 56 mm | 3.5 mm | All 4 Types |
| M4 | 0.70 | 0.50 | 63 mm | 4.5 mm | All 4 Types |
| M5 | 0.80 | 0.50 | 70 mm | 6.0 mm | All 4 Types |
| M6 | 1.00 | 0.50 / 0.75 | 80 mm | 6.0 mm | All 4 Types |
| M8 | 1.25 | 0.75 / 1.00 | 90 mm | 8.0 mm | All 4 Types |
| M10 | 1.50 | 1.00 / 1.25 | 100 mm | 10.0 mm | All 4 Types |
| M12 | 1.75 | 1.00 / 1.25 / 1.50 | 110 mm | 9.0 mm | All 4 Types |
| M16 | 2.00 | 1.50 | 110 mm | 12.0 mm | All 4 Types |
| M20 | 2.50 | 1.50 / 2.00 | 140 mm | 16.0 mm | All 4 Types |
| M24 | 3.00 | 2.00 | 160 mm | 18.0 mm | All 4 Types |
| M30 | 3.50 | 2.00 / 3.00 | 180 mm | 22.0 mm | All 4 Types |
| M36 | 4.00 | 3.00 | 200 mm | 28.0 mm | All 4 Types |
| M42 | 4.50 | 3.00 | 200 mm | 32.0 mm | All 4 Types |
| M48 | 5.00 | 3.00 | 225 mm | 36.0 mm | All 4 Types |
| M52 | 5.00 | 4.00 | 225 mm | 40.0 mm | All 4 Types |
4. Comprehensive Imperial Series (#4 - 1-1/2")
Standard ANSI B94.11 - UNC & UNF Unified Series
| Size | UNC (Coarse TPI) | UNF (Fine TPI) | Total Length | Shank Ø | Geometry Available |
| #4 (0.112) | 40 | 48 | 1-7/8" | 0.141" | All 4 Types |
| #6 (0.138) | 32 | 40 | 2" | 0.141" | All 4 Types |
| #10 (0.190) | 24 | 32 | 2-3/8" | 0.194" | All 4 Types |
| 1/4" | 20 | 28 | 2-1/2" | 0.255" | All 4 Types |
| 5/16" | 18 | 24 | 2-23/32" | 0.318" | All 4 Types |
| 3/8" | 16 | 24 | 2-15/16" | 0.381" | All 4 Types |
| 1/2" | 13 | 20 | 3-3/8" | 0.367" | All 4 Types |
| 5/8" | 11 | 18 | 3-13/16" | 0.480" | All 4 Types |
| 3/4" | 10 | 16 | 4-1/4" | 0.590" | All 4 Types |
| 1" | 8 | 12 / 14 | 5-1/8" | 0.800" | All 4 Types |
| 1-1/4" | 7 | 12 | 5-3/4" | 1.021" | All 4 Types |
| 1-1/2" | 6 | 12 | 6-3/8" | 1.233" | All 4 Types |
4. Strategic Engineering Features
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HSSE-M35 Substrate: The 5% Cobalt base ensures the "toughness" required to support the hard nano-coating without chipping.
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Spiral Point Geometry: Featured on the taps in the image for optimal through-hole performance (pumping chips forward).
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Fully Ground Precision: CNC manufactured to 6H (Metric) and Class 2B/3B (Imperial) standards.
5. Material & Manufacturing Quality
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HSSE-M35 (5% Cobalt): Provides the thermal stability required for work-hardening materials like Inox.
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CNC Fully Ground: Every thread is ground from solid hardened steel to ensure 6H/Class 3B precision.
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Anti-Rust Protection: Vacuum heat-treated and oiled for a 36-month shelf life.
6. Professional FAQ
Q: Why use Rainbow Coating instead of standard Gold TiN?
A: Rainbow Nano-coating offers higher surface hardness and significantly better heat resistance (up to 800°C), making it the superior choice for high-speed CNC machining in hard alloys.
Q: Can these nano-coated taps be used for hand tapping?
A: While they will work, their performance is optimized for machine tapping. The coating's benefits are most apparent at the higher speeds and temperatures found in CNC centers.
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