NPT/NPTF Thread Milling Cutter - Full Thread Solid Carbide Spiral Flute for CNC Machining carbide end milll
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NPT/NPTF Thread Milling Cutter - Spiral Flute Full Profile Carbide Tool
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Features of NPT/NPTF Thread Milling Cutter
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Available Sizes and Technical Parameters
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Recommended Cutting Conditions by Material
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Application Scenarios and Benefits
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FAQ: Frequently Asked Questions
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Full Thread Forming Design: Enables complete NPT/NPTF threads with 60° profile and accurate taper of 1:16.
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Solid Carbide Material: Ensures high hardness, wear resistance, and extended tool life.
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Spiral Flute Chip Removal: 3-flute design allows smoother chip evacuation and reduces the risk of jamming.
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CNC Machine Compatible: Ideal for machining centers and CNC milling machines, suitable for through holes and blind holes.
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Multiple Sizes Available: Covers sizes from 1/16" to 2-1/2" with corresponding feed and speed guidelines for all materials.
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📐 Technical Specifications – Spiral Flute NPT/NPTF Thread Milling Cutter
| Thread Size (Inch) | TPI | D (mm) | D2 (mm) | L (mm) | Le (mm) | Flutes (Z) | Teeth (Zt) | Bottom Hole Ø (mm) |
|---|---|---|---|---|---|---|---|---|
| 1/16" × 27 | 27 | 6.0 | 5.3 | 57 | 9.4 | 3 | 10 | 6.3 |
| 1/8" × 27 | 27 | 7.9 | 7.5 | 60 | 9.4 | 4 | 10 | 8.5 |
| 1/4" × 18 | 18 | 10.0 | 9.4 | 73 | 14.1 | 4 | 10 | 11.1 |
| 3/8" × 18 | 18 | 12.0 | 11.5 | 80 | 14.1 | 4 | 10 | 14.5 |
| 1/2" × 14 | 14 | 14.5 | 13.5 | 95 | 25.4 | 4 | 12 | 17.7–23.0 |
| 3/4" × 14 | 14 | 16.0 | 15.0 | 100 | 25.4 | 4 | 12 | 20.7–23.8 |
| 1" × 11.5 | 11.5 | 20.0 | 19.0 | 104 | 33.1 | 4 | 15 | 29.0–56.0 |
| 2 1/2" × 8 | 8 | 20.0 | 19.9 | 104 | 38.1 | 4 | 12 | 66.5 |
3. Cutting Conditions Table
Display the full table from the original image showing spindle speed (RPM) and feed rates (mm/min) for different materials such as:
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Cast iron
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Carbon steel (~750 N/mm²)
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Alloy steel (~30 HRC, ~40 HRC, ~50 HRC)
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Stainless steel
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Aluminum alloys
4. Key Features Illustrated with Graphics
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Full profile cutting depth: Ap = 1.5D
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Side engagement: Ae = 0.1D
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Tapered thread cutting (1:16) shown in schematic
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R0.5–R10 max depth guidance for small-radius cuts
5. Application Scenarios (Images or Videos)
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CNC milling process video
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Workpiece threading example (e.g., pipe fittings, hydraulic systems)
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Compatibility icons: Stainless Steel, Copper, Aluminum, etc.
6. FAQ Section (English)
Q1: Can it machine both NPT and NPTF threads?
Yes, this cutter is designed for 60° American thread profiles and supports both NPT and NPTF standards.
Q2: Can I use it for blind holes?
Yes. It is suitable for both blind and through-hole applications.
Q3: How long does the tool last?
Made from wear-resistant solid carbide, it supports multiple uses under recommended cutting conditions.
Technical FAQ & Buying Guide
Absolutely. Our CNC carbide inserts (including CNMG, WNMG, DNMG, and APMT series) are manufactured strictly adhering to international ISO/ANSI specifications. A CNMG 120408 from OYYU BEYOND will flawlessly fit any standard turning tool holder or indexable tool from major global brands like Sandvik Coromant, Kennametal, Iscar, Walter, or SECO, providing a highly cost-effective premium alternative without sacrificing tolerance or tool life.
We offer optimized CVD and PVD multi-layer coatings for different ISO material groups:
- For Carbon/Alloy Steel (ISO P): Choose our thick multi-layer CVD coated grades (e.g., Al2O3 + TiN). They provide exceptional crater wear resistance and thermal barriers during high-speed dry or wet roughing.
- For Stainless Steel (ISO M): Choose our nano-structured PVD coated grades with sharp, positive chipbreakers (like -TM or -MA). This combination prevents work hardening and effectively controls sticky chips.
The optimal cutting parameters vary depending on the workpiece hardness and operation type:
- For General Steel Turnings: Recommended cutting speed ($V_c$) ranges from 150 to 280 m/min, with a feed rate ($f$) of 0.15 to 0.45 mm/rev.
- For Stainless Steel Finishing: Recommended cutting speed ($V_c$) is 120 to 200 m/min, with a feed rate ($f$) of 0.10 to 0.25 mm/rev.Always adjust parameters based on early wear patterns: increase $V_c$ if built-up edge occurs, or reduce $V_c$ if severe flank wear is observed.
Yes, we support machine shops, distributors, and global buyers with tiered wholesale pricing and competitive volume discounts. We also provide OEM custom manufacturing solutions for tool holders and carbide inserts based on your technical drawings. Contact our team to request a quick B2B quotation.
We provide secure worldwide express shipping (via DHL, FedEx, and UPS) with specialized, vibration-proof industrial packaging to ensure tools arrive in perfect condition. In-stock items are dispatched within 24-48 hours, while custom or bulk orders typically have a stable lead time of 15-25 days.
All our cutting tools and tool holders are manufactured strictly in accordance with ISO 9001 and international industrial standards. Every batch undergoes 100% rigorous quality control testing using high-precision optical measuring equipment to ensure reliable tool life and stable performance in continuous mass production.