Cal Hawk Tools CZCWA Arbor Adaptor, 1/4″

I bought this to use in my nill for cutting a slot in screwdriver shafts that I sell along with my front sight adjusting tools for the Lee Enfield #4 rifles, to loosen and tighten the male headed lockdown screw that they used.It’s a good quality and had negligible runout, which was important to me as the width of the slot has to be tightly controlled. The item was shipped fast and packed well, I’ll buy another one to have on hand but it will probably sit in the cabinet unless I lose this one somehow as I don’t see any possibility of it actually breaking on me!