- Joined
- Dec 23, 2012
- Messages
- 813
You most used chuck are worn because most machinist do not lub chucks. If lube the chuck it may spit oil or grease. They did not buy the chuck and do not care about lubrication. They do to any machine tool oil free.As a side note.
On a quality chuck, one of the pinions will be marked, usually with a 0. That is the one they used when grinding the jaws. If you use it you will get the least runout.
Unless the chuck is totally worn out.
Greg
Dave