View Full Version : Can't Get It Loose!

Pat Miles
11-04-2004, 07:42 PM
Found a heck of a deal on a Criterion boring head on Ebay. It has a .750" shank now with the 7/8 x 20 threads into the head. I'm having no luck trying to remove the shank so I can install a #2MT shank. I don't want to scar the old shank during removal. Any ideas? I'm assuming that the threads are right hand(don't have the new shank yet to look at)

11-04-2004, 08:46 PM
Bore yourself a hole to fit the original shank in a piece of aluminum,split the block trough the bore,then insert the shank into the block and clamp it in a vise.Stick a couple pins in the boring bar holes and use a bar to twist on the head.Hope this helps.

11-04-2004, 09:24 PM
I hope it does not have locktight on the threads, you might have to put some heat to it to melt the locktight.

Pat Miles
11-05-2004, 01:33 AM
Thanks for the replies gentlemen. I took Wierds advice and bored a 1" x1" piece of aluminum to hold the shank. Had to still crank down my vise but it finally popped loose. No loctite so no heat was necessary. Order up a #2 MT shank and some bars and as the "Great One" used to say - "Awaaay We Go"!
Thanks Again.

11-05-2004, 04:27 PM
Was the shank left or right hand threaded?? Also have one - need to replace the straight shank with an R-8 one. Thanks!! A.T.

11-05-2004, 04:45 PM
What kind of machine uses an MT 2 spindle???
Just curious, my machine is R8 spindle....

Pat Miles
11-05-2004, 06:24 PM
Threads are right hand on my DBL202B head. The #2MT fits my old Clausing model 8520 knee mill.

11-05-2004, 06:31 PM
#2mt also on my micro mill.

11-05-2004, 10:20 PM
Thanks again, Pat! I didn't want to booger up mine! A.T.