Serious machinists, this 5-piece carbide end mill set is built for tough jobs! These 5/16\ (8mm) square end mills feature 4 flutes and AlTiN coating that provides excellent hot hardness and oxidation resistance. With an HRC55 rating, these cutters handle carbon steels, alloy steels, pre-hardened steels up to HRC45, and even hardened steels between HRC40-45.
The micro-grain carbide construction offers superior hardness and wear resistance compared to high-speed steel, meaning these end mills last longer and maintain their cutting edges through demanding applications. The 4-flute design provides high rigidity perfect for shallow slot milling, profile work, and finish machining operations.
Whether you're working in a professional shop or have a serious home machining setup, these end mills deliver precision performance on tough materials. The set gives you multiple tools to work with, so you can keep working even if one needs sharpening. If you need reliable cutting performance on hardened materials, this ZOUZMIN set has you covered with professional-grade tools at an affordable price.
Free 30-day returns 
Free 30-day returns
