6pcs 4-16mm Thread Mills CNC End Mill Sets 4 Flute Slot Drill Micrograin Carbide End Mill Carbide Tungsten Steel Milling Cutter

Square Nose End Mills made of quality high speed steel, with trait of high toughness, extremely wear resistance, high speed cutting, high hardness Milling Cutter Tool adopt with negative rake angle and large-core design, strengthening the rigidity and sharpness, making the cutting and chip removal more stable, improving machining efficience. With double-edged and 45° spiral angle design, making end mills more druable and reducing the metal burr on product Extra large space of chip removal that makes the machining process more fluent and efficient, to get high precise and shine products Perfect for CNC data machine, milling machine, drill machine to milling copper, aluminum, tool steel, cast iron and directly machining or fine processe the heat treatment mold..