Square shank milling cutters made of high quality steel, with a feature of high toughness, extremely wear resistant, high speed cutting, high hardness.The milling tool adopts an angle of cut. negative attack and a large core design, which enhances stiffness and sharpness, which makes cutting and chip removal more stable, which improves machining efficiency.With a double-edged spiral angle of 35, it makes the cutters more permeable and reduces product burr.Extra large chip removal space which makes the machining process smoother and more efficient, to obtain high precision and brightness products.Perfect for CNC data machine, milling machine, drilling machine for milling copper, aluminum, tool steel, casting and direct machining or fine processing of the heat treatment mold.