I created this scratch bump mat in photoshop, it's seamless so feel free to use it. The scratch mat was applied as a spherical map in my render, but feel free to experiment. This accentuates the hilights and adds to the realism (these type of hilights only appear in slightly radially scratched metals. Unless of course there's a giant tower of light...Then all metals do.. Turned the comments on in the image, I accidently put ratings on instead of comments. Why don't they just have comments checked by default?