For best results in setting our plain rim grommets and washers, use an Osborne No. 500 hole punch and an Osborne No. 216
setting die with corresponding sizes. Also can be set using W-1 & W-3 Machines.
Material is brass with dull black finish. 3/8" Dull Black Solid Brass Grommet and Washer with .215" flange. One Gross.