4 tips combination -

STANDARD  - General purpose tip for larger internal features and holes.Can also be used to make holes after printing

SCOOP - Perfect to remove stringing and imperfections from inside holes or recesses. Can also be used to blend surfaces

NEEDLE - For clearing small holes and features or for detailed layer refinements in hard to reach places

KNIFE  - For cutting and removing sections including the removal of supports, brims, and rafts from your 3D print