Iscar ETM ITS BORE help

[ironlung29]

Well I at this point in my career I wanted to add making my own die sets to my set of skills. I like the idea of the added accuracy of doing the bores for the leaders and bushings in the same setup as my nests and dowel holes.

I can't even get out of the gate!

I purchased an Iscar/ETM iTS-BORE MB50 fine boring head and a BT-40 holder.

The problem I am having is I cannot mount the head to the holder. It is not the usual threaded mount system that I have seen in the past. There is a straight shank and tapered face, in the shank portion of the boring head there is a cross hole with a screw into a small ring.

In my opinion it seems the mount screw is jammed in the ring from the manufacturer. The torque spec says 22-25 lb/ft but the mounting screw will not budge either way. The screw/ring assembly does have about 1/8 turn wiggle room but hard stops at either side. I don't want to manhandle this thing to roughly and damage it before the first cut. I am using a standard length 6 mm hex key and getting a good 20-30 degrees deflection but it only has that 1/8 turn of free play and will not turn either way beyond that.

However it is not clear to me how it all comes together. What is correct is not obvious to me and the documentation is not clear.

If anyone is familiar with the iTS-BORE system particularly the MB50 could you kindly help this chip sweeper?

Is this the most appropriate place for this thread?

[ironlung29]

I am sure I'll have more questions about fine boring once I get the darn thing mounted!

[ironlung29]

Thanks everyone!!!


I spoke with Iscar and they seem to think it is broken. Back it goes to MSC.