Criterion boring head Threads..

speedybtx

Registered
Registered
Joined
Apr 9, 2020
Messages
54
I hope this problem is the Made in India R8 Shak adapter.....
IMG_7518.JPG


And NOT a problem with the internal threads on the Head. This is the head I got from Ebay. Sold as NIB, and it does appear to be so. Threads look OK and cleaned out..
I did contact the seller and let him know this was a $30 dollar adapter, And will get a Criterion made Adapter.
Did just order a new Criterion brand adapter

here is the India made adapter
IMG_7519.JPG
 
What is the problem? Thread mismatch. Did you try measuring the thread?
 
What is the problem? Thread mismatch. Did you try measuring the thread?
I have nothing. nada, zilch to measure with. Appearances say it is a thread depth issue at the least. Looked at the Crit threads under a microscope. lol.
on the positive side, i SAW NO VIRUS in the threads. lol
 
The Criterion arbor should solve the problem. Love my Criterion boring head.
 
Yes, only two outcomes possible.... Crit arbor fits, or the head was mis-machined. which would explain why it ended up on ebay NIB, lol.
I have contacted the seller, to let him know, and that I ordered a Criterion arbor.
 
Back
Top