The Redding Bench Stand and Trimmer Clamp is a great accessory for reloaders looking for a quick, easy way removable way to securely mount their Redding trimmer or powder stand to their reloading bench without having to drill holes in their bench. This double C-clamp design will work with benches that have a thickness up to 2-1/4" and the measures 1-5/8" between the inside edge of the clamp's fingers. Notes: Accommodates a bench thickness up to 2-1/4"