3-Flute Thread Milling Cutter UNC/UNF | BEYOND High Precision Carbide Thread Mill carbide end milll
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3-Flute Thread Milling Cutter UNC/UNF | BEYOND
The BEYOND 3-Flute Thread Milling Cutter is designed for high-performance threading of UNC/UNF profiles in various materials, including carbon steel, stainless steel, copper alloys, and hardened steel. Made of ultra-fine grain solid carbide, it provides superior strength, sharpness, and durability for precise CNC thread milling.
Features
- High precision 3-flute design ensures stable cutting and efficient chip evacuation.
- Suitable for machining UNC and UNF standard threads.
- Solid carbide construction for excellent wear resistance and long tool life.
- Supports multi-axis CNC milling for high efficiency and accuracy.
- Optimized cutting edge geometry minimizes vibration and improves thread surface finish.
Applicable Materials
- Carbon Steel and Alloy Steel (~30HRC)
- Pre-hardened Steel (~40–50HRC)
- Stainless Steel
- Copper, Brass, and Aluminum Alloys
Recommended Cutting Conditions
| Material | Hardness | Cutting Speed (m/min) | Feed Rate (mm/min) |
|---|---|---|---|
| Carbon Steel / Alloy Steel | ~30HRC | 130–200 | 400–900 |
| Pre-Hardened Steel | ~40HRC | 110–150 | 350–800 |
| Stainless Steel | — | 90–130 | 300–700 |
| Hardened Steel | ~50HRC | 80–110 | 250–600 |
Thread Milling Process
The threading operation includes positioning, helical interpolation, and finishing. The cutter enters along the helical path to form a precise internal or external thread. Stable feed and speed parameters ensure excellent thread accuracy and surface finish.
- Start Position: Align the tool center with thread position.
- Helical Entry: Begin circular interpolation at the starting point.
- Thread Milling: Perform spiral cutting to desired depth.
- Exit and Finish: Retract along the helical path for a clean thread exit.
Cutting Depth & Step
For thread diameters from 1–20 mm:
Axial depth (Ap): up to 1.5D
Radial step (Ae): typically 0.05D–0.1D
Applications
- Precision CNC threading for automotive, aerospace, and mold manufacturing.
- Internal and external threads for mechanical components and metal fittings.
- Works on machining centers, lathes, and milling machines.
Specifications
Thread Standard: UNC / UNF (Unified Thread)
Flutes: 3
Material: Solid Carbide
Brand: BEYOND
Coating: TiAlN / AlTiN / Nano Coating (optional)
Why Choose BEYOND Thread Milling Cutters?
- Optimized for stable CNC machining and high thread accuracy.
- Long tool life and reduced cycle time.
- Global export-quality standards, competitive pricing.
BEYOND — Professional Cutting Tools Manufacturer for Global CNC Machining.
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.