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WTS: 3J collets

paroikoi

Aluminum
Joined
Oct 2, 2014
Location
Jonesboro, AR, USA
Up for sale for $299 shipped (for the lot) are 17 3J collets. I'm no collet expert so I don't know if some of these have been drilled or bored to a larger size. These are the marked sizes:

3/16" - Hardinge
1/4" - Lyndex
5/16" - Lyndex
7/16" - Lyndex, quantity 2
1/2" - Lyndex, quantity 2
17/32" no brand marking visible, has different font than Lyndex, so likely not Lyndex
9/16" - Lyndex
5/8" - Lyndex, quantity 2 (one of these has been cut shorter - see photos)
3/4" - Lyndex, quantity 2

Emergency collet bored out to a little over 1" - Lyndex
Emergency collet bored out 1-1/4" - Lyndex
7/16" Lyndex collet machined out to a weird triangular shape - quantity 2

I don't know how much larger than marked size a collet should be without being clamped in a collet closer. Of the above listed standard size collets, only the two 7/16" collets and one of the 3/4" collets are close enough to marked size that I can put an end mill of that size into the bore and close it tightly with just my hand. The others seem to have 1/32" to even 1/16" slop. I don't know if that is normal. The bores look shiny and undamaged. The bores on my 2J collets seem to have similar slop and close properly on end mills of marked size in my Sjogren chuck but not by squeezing the collet with just my hand. They may all be fine. I'm just pointing this out so there are no surprises.

IMG_20200506_203456.jpg
IMG_20200506_203512.jpg
IMG_20200506_203523.jpg
IMG_20200506_203542.jpg
IMG_20200506_203729.jpg

I can email or text larger photos if need be.

I'm also willing to trade these for various things I need such as 2J collets, CXA tool holders, a boring head I can use on my Van Norman #12 (I have a boring head adapter), boring bars for same, a Jarno #12 or #13 dead center, a 6" or 8" rotary table for my VN12 (needs to do both horizontal and vertical), a VN12 dividing head, a VN12 high speed head (I don't recall the specific name, but the attachment that has a built-in quill), or a 5HP VFD.
 








 
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