Upgrade your CNC machining projects with these high-performance HSS end mill cutters. Designed for durability and precision, these 4-flute spiral end mills deliver smoother cuts, extended tool life, and superior efficiency in metalworking applications.

Key Features:
✔ High-Speed Steel (HSS) Construction – Offers high hardness and excellent wear resistance for long-lasting performance.
✔ Breakage-Resistant Design – Reinforced spiral flutes provide high strength and reduce tool failure.
✔ Smoother Finishes – 4-flute spiral design ensures finer surface finishes with minimal roughness.
✔ Optimized for CNC Milling – Ideal for steel, aluminum, and hardened metals (HRC 63-65).
✔ Inner Arc & Dubbed Corners – Enhances chip evacuation, lubricity, and cutting speed.

Specifications:
Material: High-Speed Steel (HSS)

Coating Options: TiAlN (optional) or uncoated

Helix Angle: 30° for balanced chip removal

Flutes: 4 (optimized for CNC milling machines)

Size: 1/4" (6.35mm) shank & cutting diameter | 18mm cutting length | 60mm total length

Package Includes:
10PCS 1/4" HSS 4-Flute End Mill Cutters (SKU: U14090049S01)

Perfect for machinists, DIY metalworkers, and CNC professionals seeking reliable, high-efficiency cutting tools.