Before revision: 200px|Example of a non-filleted pole (left) and a filleted pole (right) 200px|It is common to find a fillet where two parts are welded together In mechanical engineering, a fillet is a rounding of an interior or exterior corner of a part design .
After revision: 200px|Example of a non-filleted pole (left) and a filleted pole (right) 200px|It is common to find a fillet where two parts are welded together In mechanical engineering, a fillet is a rounding of an interior or exterior corner of a part designed in CAD .