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This is correct, very thin oil like WD40 and kerosene are, by far, preferable for Aluminium.

I had an experienced machinist tell me WD is better than common cutting oil for aluminum.

My experience is that with a decent bit of round bar - IE pretty good circularity - the four jaw holds it more firmly. It feels a bit more rigid when turning. If the circularity is a bit irregular it

Guys,? I can't see how Robert is going to hold this workpiece in a 4J *self centering* after he has machined one dimension to 24mm??? Am I missing something here??? Richard H.

Sherline makes one. https://www.sherline.com/product/4-jaw-independent-chuck-3-1/#description Best Regards John

Hi Gang: 2 jaw chucks are great for special jaws, turned to match the part. We had a 6 jaw and it was nice for thin wall work pieces, I think it also have 4 set screw to "Run True". Carl.

The problem is that there are limited M12 chucks available for Unimat SL especially, 4 jaw independent type. I've got to take a 25mm square bar of about 40mm long down to 24mm square. I'm sure that

To be a bit pedantic, 3-jaw or 4-jaw chucks are available as either a "self-centering" type or "independent" jaw type. It's just that it is most common that people have a 3-jaw self-centering and

Rob, I hope you realize that this is just a 4 jaw version of a 3 jaw chuck. The advantage of the chuck with separate screws to move each jaw is that it’s possible to hold items off center or more

Hi Paul Many thanks and spot on indeed. I've also noted that following you're comments, if the jaw number on the chuck is match up to the same jaw number at the same side so as you can see the numbers

Forgot to mention, this method is applicable to the 3 jaw scroll chucks as well. Paul Allen [email protected]> wrote:

Here is a notated version of the image: [email protected]> wrote:

When reversing the jaws, you will put them in using reverse ordering. So the #4 jaw goes into the #1 slot (so first), #3 jaw goes in the #2 slot, #2 jaw goes in the #3 slot, and #1 goes in the #4

Hi All I was very lucky as my wife treated me to a Soba 4 jaw central reversible chuck to get on with my work as I was having so much trouble filing the jaws of the HBM 50m 4 jaw chuck. The Soba is a

The ER16 holder that I’m making at the moment (with M19 x 1 ‘mini nut’) will allow the slide to go right under it, all the way to the headstock, on the U3. This allows you to (for instance) cut

ER16 collets are cheaper than ER 32, and ER16 go up to 10 mm, which matches the hole through the headstock. I found little need for anything bigger, although I did get an ER25 set for my U3 just

If it's any help M40 × 1.5 is a standard metric conduit thread. Not so common yet as industry still has a long legacy of Pg threads, but you might be able to find a die that doesn't cost an arm and a

Great!!

If anyone is interested, it went for $334.00