Osborne grommeting dies and grommet hole cutters are numbered to correspond with standard size grommets. The dies are guaranteed to set the proper size and style Osborne grommets. Grommet dies and cutters should be used with an Osborne rawhide hammer or wooden mallet, not with a steel hammer. We recommend our No. 395 rawhide hammers for this purpose.
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.