3-Flute Thread Milling Cutter UNC/UNF | BEYOND High Precision Carbide Thread Mill
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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.
| size |
UNC NO.1-64, UNC NO.2-56, UNC NO.3-48, UNC NO.4-40, UNC NO.5-40, UNC NO.6-32, UNC NO.8-32, UNC NO.10-24, UNC 1/4-20, UNC 3/8-16, UNC 7/16-14, UNF NO.1-72, UNF NO.8-36, UNF 1/4-28, UNF 5/16-24, UNF 7/16-20 |
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