The SPMG insert is primarily used as the core cutting element for indexable U-drills (violent drills / flat drills), directly participating in hole machining to remove material efficiently. It is typically used in combination with high-efficiency U-drill shanks and internal-cooling drill bodies to achieve high feed speed, stable cutting performance and excellent hole precision, especially crucial for high-volume and fast hole drilling on steel, iron and alloy workpieces. It is suitable for mold processing, automotive parts, hydraulic components, general machinery, engineering machinery and aerospace auxiliary component manufacturing.