Walnut Knife Handles Walnut Knife Handles have a slot on one side to allow for the knife to attach to the handle. The holes are used to secure the knife in place. Custom work is our specialty! Need something you don’t see here? Other species are available as well as custom printing, finishing and secondary operations. Common options for Walnut Knife Handles Species Walnut Secondary Operations Cross bored holes Slotting Finishing Clear satin finish Ann Arnold2021-01-06T12:24:07-05:00