Brush Research
Brush Research BRMBC31618 Flex Hone, for Brake Cylinders, 3/16" Diameter (4.75mm), 180 Grit, 8" Overall Length.
The Brush Research BRMBC31618 Flex Hone is a 3/16" diameter (4.75mm) brake cylinder brush hone with a 180 grit finish. It is 8" long overall and has a flexible neck for easy reach.