11-03-2019, 12:19 PM
(11-03-2019, 11:26 AM)Paulc Wrote: Did a second one by progressively drilling a larger hole after starting with a center drill and that went smoothly as well.
Not surprised with the Chinese boring bar results. Been there done that. When drilling my method is to use 3 drills. Center, pilot and finish. I measure the width of the chisel edge of my finish drill and use that as my pilot drill size.
Willie