Hard or impossible shifting out of 4x4 with C60 CMP- Tip

[Bob Carriere]

Will see if I can find some soft metal to work with....... will visit COHEN & COHEN to see if I can find a slab of brass or copper....not to keen on using aluminium as it can be hard to grind and I can't welded it..

I have a solid slice off a 8 inch Berylium bar from NRC..... but apparently it is very toxic when you machine or grind.....

I like the idea of a spacer........

Bob C.