End Mill Bits Set 4,6,8,10,12mm, 4 Flute End Mills Drill Bit Tool, Metric HSS CNC Lathe Straight Shank End Mill Cutter Tool Set for Milling of Kinds of Metal

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 35° spiral angle design, making end mills more druable and reducing the metal burr on product Square Nose End Mills made of quality high speed steel, with trait of high toughness, extremely wear resistance, high speed cutting, high hardness 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.