Micrograin Carbide Square End Mill - 4 Flute, 4T Design (1pcs, 3/16") for Alloy Steels, Hardened Steel, Metal, and Multipurpose Milling - Precision Tool Kit for DIY and Professional Use

Key features

• Wide ApplicationEngineered for carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), and more, the Carbide End Mill excels in CNC machining, engraving, high-precision carving, and high-speed applications
• AlTiBN CoatingThe AlTiBN-coated carbide end mill delivers 3x wear resistance, high-temp oxidation shielding, and 40% enhanced thermal stability—its nano-structured surface supports rough-to-fine machining on heat-treated materials below 50℃ for extreme dry and heavy-duty applications.
• High-Efficiency Cutting0.6μm micro-grain carbide 4-flute end mill with 55° helix—superior wear resistance, smooth cuts, fast chip removal, and 20% faster machining for precision and high-speed work
• Precision CraftedHOYUSK's Mill Bits ensure -0.02mm accuracy across CNC lathes, engraving machines, and machining centers—delivering flawless surface finish, minimal vibration, and reliable micro-level precision for critical components
• DEDICATED SUPPORTNeed precise cutting data? Reach out directly here on Amazon—our technical team will promptly provide custom parameters and tooling guidance to ensure you achieve maximum performance with your ideal milling solution

Free shipping included. 30-day hassle-free returns.