I have been trying to figure out the best way to model this part. I am attaching a zip file that has several images in it for reference. The problem I am running into is that the "wing" portion of the part is pitched at an angle to the flat edge and then blends into the mounting portion without any sharp edges. I am able to model it with the bottom flat and radius into the mounting area but this is not how it is made. The part keeps a common thickness except on the sharpened cutting edge.