We have been selling our own brand of rasps for years with a US made ash handle of our own design. Well, not really our own design. We designed it but it is influenced by all the various designs of handles that have gone before it. Unlike some other handles, like the Skroo-zon which we know and love and stock, these handles are a little thinner, a little longer, and are designed to put the control in your fingers, not just give you a good support in your palm.
About 5" long (including the ferrule), just under 1" max diameter, Hole size: 3/16", hole depth: 1 3/4". With a solid brass ferrule, Ash, Made in USA.