Backing plate for chuck

Artak! A good source for that information is:

Artak,

I don't have a clue what a D-4 spindle nose might be but I don't think you will like that chuck. It appears to be a typical machinist's four jaw chuck. Each of the jaws is adjusted independently. Chucks designed for wood lathe operations have four jaws but they open and close together. They are often called scroll chucks. I think you would be smart to cancel the order with Harbor Freight and look at some of the inexpensive chucks offered by Penn State Industries.

Your Jet Mini has a 1" x 8 spindle. That means one inch in diameter with eight threads per inch. You should be able to get any woodworking chuck with that thread configuration.

Hope this helps,

Harry

Harry is right. I have a couple of those chucks, and I know of only two uses for them. Because of the independently adjustable jaws, they cah be used to do eccentric turning in a very limited way. It can also be used to hold a door open or closed. Those are the positives. On the down side, it is very hard to get your work centered, and the jaws don't hold very well. The thread 9is 3/4 x 16 TPI, which could be tapped out to 1"x8 TPI, if you really insist on beating a dead horse.

Here's another use for them, Leo: Use those great independent jaw chucks to hold the natural curved handles of some walking canes/sticks. Yes, it takes some fiddling to get things lined up but having those independently moved jaws give the best grip.

- Andrew

Hi Artak,

I'm interested in why you ordered that particular chuck; do you have a specific use for it or are you just looking for a 'useful' chuck for your lathe? If it is the latter, I have a similar (same) lathe and I'm interested in the answers from the group.

Cheers, Tom

That chuck is intended for their small metal lathe, not a woodworking lathe. You'd do better buying a chuck intended for woodworking.

Bill

Artak, What you have is a Metal working chuck. The D-4 configuration is a sort of quick change adapter for the chuck. The Jet Mini does NOT have this feature. Send the chuck back to HF. Check the catalogs from Woodcraft, Packard Woodworks, Craft Supplies USA, or Penn State Industries. They all have chucks to fit the Mini. The newest Penn State catalog I got recently had some low priced scroll chucks, but I don't know about the quality. If you go with anything from Teknatool or Oneway, you can't go wrong.

I bought its 6" big brother and mounted it to a regular face plate. As long as you're careful to measure out the mounting holes you should be all right. Being that it's a independent 4 jaw chuck being a couple hundredths out of true shouldn't cause any problems

I want to thank everybody for valuable responses.

The general consensus seems to be "get something else" so I will probably return the chuck and get something else.

Thank you,

Artak