How tight should a Nova chuck insert be when installing it?

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Forum topic by BillTuttle posted 06-26-2014 10:13 PM 1310 views 0 times favorited 3 replies Add to Favorites Watch
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3 posts in 1872 days

06-26-2014 10:13 PM

I have a new SuperNova2 chuck and insert. The insert fairly easily screws about half way in, but from there it is very tight. I know the instructions mention this, but how difficult should it really be? I’ve cleaned both sets of threads. Any help would be appreciated. Thanks!


3 replies so far

View doitnut's profile


8 posts in 2090 days

#1 posted 06-29-2014 03:15 AM

Bill———there is a set screw in the chuck—Sounds like the set screw may be in too far to install the insert. There is a small hole that leads to the set screw. Check it out and be sure to use it to lock the insert back down if that is the problem. Gene Rose

-- E. Gene Rose

View BillTuttle's profile


3 posts in 1872 days

#2 posted 06-29-2014 04:41 AM

Thanks – Heard back from Teknatool support. Seems it was tightening all it needed to be, didn’t need to bottom out. The set screw wasn’t installed yet. Seems to be good to go.

View hairy's profile


2783 posts in 3773 days

#3 posted 06-29-2014 02:55 PM

If you’re talking about securing the insert to the chuck, I would use Perma Tex Never Sieze on the threads. You may want to remove it someday,it will not cause it to loosen. Get it at auto parts store, the borg, I bet Kroger’s has it.

I put it on my chucks, not just the threads but the taper, too. A little dab’ll do ya.

-- My reality check bounced...

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