(G9D77) 4G Mill, X-Speed rougher, 4&5Flute Multiple Helix Corner Radius Roughing End Mill, Long Reac
Long-reach carbide X-Speed Rougher for pre-hardened steel
- SKU
- G9D77060
Key features
- Carbide X-coated long-reach corner-radius roughing end mill
- 44°–45° multiple helix geometry supports chip evacuation and vibration reduction
- Optimised roughing tooth profile reduces cutting forces
Made in South Korea
High-feed roughing
Special tool geometry supports high-feed, heavy-cutting roughing applications.
Controlled chip flow
The unique flute design promotes chip evacuation and reduces vibration.
Plunge-ready end teeth
Strong end teeth support plunge and pocket milling operations.
| SKU | Mill Diameter (mm) | Corner Radius | Overall length (mm) | Shank dia. (mm) | Flutes | Length of cut (mm) | Stock | Price | Qty | Add |
|---|---|---|---|---|---|---|---|---|---|---|
| G9D77060 | 6 | R0.50 | 57.0 | 6.0 | 4 | 9.0 | 1-2 Weeks | $112.00 | ||
| G9D77080 | 8 | R0.50 | 63.0 | 8.0 | 4 | 12.0 | 1-2 Weeks | $126.60 | ||
| G9D77100 | 10 | R0.50 | 72.0 | 10.0 | 4 | 15.0 | 1-2 Weeks | $186.80 | ||
| G9D77120 | 12 | R0.50 | 83.0 | 12.0 | 4 | 18.0 | Low stock | $186.20 | ||
| G9D77160 | 16 | R1.0 | 92.0 | 16.0 | 5 | 24.0 | Low stock | $151.48 | ||
| G9D77200 | 20 | R1.0 | 104.0 | 20.0 | 5 | 30.0 | 1-2 Weeks | $530.60 |
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View Comparison- Overview
- Specifications
- Reviews
YG-1 G9D77 4G Mill X-Speed Rougher is a long-reach carbide corner-radius roughing end mill. Its multiple-helix 44°–45° flute geometry improves chip evacuation and helps reduce machining vibration. Designed for pre-hardened steels up to HRc40, it supports high-feed, heavy-cutting roughing operations. Strong end teeth support plunge and pocket milling where reliable cutting-edge engagement is required. The optimal roughing tooth profile reduces cutting forces while producing uneven chips. Carbide X coating is engineered for long tool life and effective chip evacuation. Plain-shank options cover 6–20 mm diameters, with R0.5 and R1.0 corner-radius selections. Four-flute tools span 6–12 mm, while 16 and 20 mm diameters use five flutes.
- Carbide X-coated long-reach corner-radius roughing end mill
- 44°–45° multiple helix geometry supports chip evacuation and vibration reduction
- Optimised roughing tooth profile reduces cutting forces
- Strong end teeth support plunge and pocket milling
- Suitable for pre-hardened steels up to HRc40
- Plain-shank diameter range from 6–20 mm with four or five flutes
No specifications available.
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