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C.S.Osborne & Co. No. G1-3. Crafted in the USA . CNC machined from high grade tool steel, Properly machined and hardened.No. G1-3 sets size 3 grommets. Size 3 grommets have a 7/16" diameter hole when set in, 0.955" out side diameter, and 0.295" Length under flange . Hole punch not included
.Grommet dies and cutters should be used with an Osborne rawhide hammer or wooden mallet, not with a steel hammer. We recommend C.S.Osborne & Co. No. 395 rawhide hammers for this purpose. Mallet Not Included.
MPN #13020-B