[Features] ● Suppresses chattering and expands the cutting range. ●Excellent sharpness and high-precision machining. ● Chattering is suppressed by adopting a cutting edge shape that is ideal for machining aluminum alloys and non-ferrous metals. ● Machining efficiency is 1.5 times that of the 2-flute type. ● A short blade length is used to ensure high rigidity.