4 Jaw Chuck

In that pic it dosn't seem to be able to hold smaller od parts with those jaws
 
My 4-jaw isn't my "normal" chuck. I generally have my 6-jaw on the lathe, however, I do use my 8" 4-jaw quite a bit. Much more than on my previous lathe because the D1-4 mount is so much more user friendly when it comes to switching chucks. I also use my faceplate a lot more than my previous machine.

I too have myself dialing in my 4-jaw quicker each time I use it, which is probably why I find myself reaching for it as much as I do.

Mike.
 
I seem to need which ever Chuck isn't on the lathe. I mostly use the 4 jaw tho. If it is a one time setup or a short job I use what ever is on there. If it needs to be exact I use the 4 jaw. If I have to pull the part I take my sharpy & mark the piece & jaw then only loosen two jaws. Putting it back I tighten the two I loosened. Usually with no correction needed.

I use the three jaw when I'm going to be in & out a bunch before I'm done & have a good bit of tolerance.
 
Here's one of my four jaws. Can't even lift it. Don't have a use for it. 24" and is extremely heavy. Picked it up at an auction because nobody else wanted it. twentyfour.jpg
 
I can count on one hand the times I have used a 4 jaw chuck in my shop in the last 40 years. When I do use it, there is no substitute, but it’s rare. If you want to offset a project in a three jaw. Just put a shim between one of the jaws and the work. I have used that method many a times when making cam action levers for Levin lathes. No dial indicator needed, you know the offset (trig it) because of shim thickness …Dave.
 
Uglydog said:
Looks clean.
What is the back?

Daryl
MN
Click to expand...
It is clean and jaws are in great shape and move freely. It was put in my truck yesterday and it is still there. I can not lift it to see the other side. LOL! I will pull it out this weekend and post a picture of the back.
 
That wouldn't fit on my lathe & it probably couldn't turn it if it did. I'm not even sure it would even support the weight.
 
My 9" 4-jaw is my only decent chuck. I have a smaller 3-jaw Cushman, but it needs a rebuild and the jaws need to be ground.
 
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