Moose Racing Radiator fin Straightener 3850-0263A quick tool for putting all those cooling fins back to work Straighten damaged fins and remove debris without danger of puncture Straightener sections are clearly marked for fin size Compact enough to use even in confined spaces The straightener head is 3 1 8in. in diameter and the handle is 3 1 2in. long Straightens 8, 9, 10, 12, 14 or 15 fins per inch