1 /2 inch Carbide Square End Mill 4 Flute, AlTiN Coated, 3 inch Flute 6 inch OAL, 3300 HV, HRC55, for Stainless Steel, Cast Iron, Tool Steel, High Alloy Steel, High Speed & Feed

Features

• Superior AlTiN Coating (3300 HV) for Extreme Conditions: Engineered AlTiN coating withstands temperatures up to 900C (1652F), provides exceptional oxidation resistance, reduces friction (Coeff. 0.5), and extends tool life by 2X+ vs. uncoated end mills. Ideal for demanding dry/high-speed machining.
• 1/2" Solid Carbide End Mill: Our premium micro-grain solid carbide end mill offers maximum rigidity and wear resistance. This 1/2-inch tool has a 3-inch flute length, a 6-inch overall length (OAL), and four flutes. It is perfect for CNC mills, drill presses, and benchtop routers.
• Optimized for Hard Materials & High Performance: Specifically designed for maximum productivity on tough alloys including Stainless Steel, Cast Iron (Class 30+), Tool Steel, and High Alloy Steel. Engineered for higher cutting speeds & feed rates while maintaining reliability and extended tool life in materials up to HRC 55.
• Precision Geometry & Efficient Chip Removal: 4-flute design with optimized helical flute geometry and 35 rake angle ensures excellent surface finish, minimizes chip recutting, and promotes smooth chip evacuation, especially in gummy materials like stainless steel and aluminum.
• Extended 3" Flute for Deep Cavity and Slotting: It provides a 15% greater cutting depth capacity than standard 2.5" flute end mills when working with medium-hard materials (up to HRC 55), such as stainless steel, tool steel, and cast iron. This enables more efficient machining passes.