Sets plain rim grommets and washers.
Sizes 00 thru 5 are CNC machined from high grade tool steel, while sizes 6 & up are a malleable iron casting. Properly machined and hardened. The finest industrial grommet dies made. For best results use only Osborne grommets and washers G1, B1, N1 & SS1 with corresponding sizes. sponding sizes.