Bob, they are good for getting bore diameters, not good for use as plugs for removing dents because they have no beveled leading edge and could score the barrel. They are made of hardened steel.
Plus I think you meant to put .001 instead of .0001. They would have to be centerless ground for that tolerance and it would cost a lot more.
Jent Mitchell posts on here sometimes and he bought set and took them to a machine shop to have a level put on them, cost a lot more than the plugs.
Last edited by David Williamson; 11/24/22 02:47 PM.
