11.4lY - C.S.Osborne & Co. No. N1-0 - NICKEL Grommets & Plain Washers size 0 grommets. Size 0 grommets have a 0.6cm diameter hole when set in, 1.4cm out side diameter, and 0.4cm Length under flange . For best results in setting our plain rim grommets and washers, use an Osborne No. 500 hole punch not included and an Osborne No. 216 setting die with corresponding sizes. Also can be set using W-1 & W-3 Machines. (Cutter,Setter and Press Not included)