It was bought in the fall of 2017 by the guy I bought it from, ,Yesterday I replaced the O ring in the tip so it can be used quick change by just inserting a Graver with out loosening any of the set screws if you want to, I also installed 3 new set screws for the gravers in case you'd want to use them to hold in the graver more secure for any reason . Just like a new one.
