Hi Tyler,
What I got was a pack of 10 3mx140 long round diamond needle files. I ground a bit off the tip so it wouldn't go out through the back of the primer cap. I use it in the battery drill and only give it a couple of seconds to clean the bur. So far good success
This is not what I bought but the look the same and half what I paid for mine
Last edited by NormK; 09/10/22 04:56 PM.