The CCGT09T304-AK insert is primarily used as the core cutting element for positive rake turning tools, directly participating in external turning, internal boring and contour machining to achieve smooth chip evacuation and superior surface quality. It is typically used in combination with 80° diamond positive rake turning toolholders to provide sharp cutting edge and prevent built-up edge, especially crucial for precision finishing on aluminum alloy, copper and brass workpieces. It is suitable for automotive aluminum components, new energy parts, hydraulic fittings, precision non-ferrous components and general machinery manufacturing.