These work great on gang drill presses Alcap . After setting your depth , it's a breeze doing multiple c'bores for SHCS and such .Hope no one minds me ask here . I have gotten though the years different counter bores but never used them . When I did need to make a counter board holes I used an end mill . Could someone explain the times/uses for them ? Thanks
Does anybody use these or have extras they would like to pass up?