Quote History Originally Posted By smullen:
Are we supposed to know what those are or do?
Aside from hold bars...
What am I looking at?
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Phase II 250-304 and a Shars 250-341. Both are cheap boring bar holders from China.
They use a half moon type nut pulled up through the now unused holes in the top of the holder to clamp the bar in two spots.
There are really nice Aloris boring bar holders that use set screws, or my personal favorite, split clamping, but they cost nearly $150 each. I decided to turn these into set screw type holders. The Phase II was free and the Shars cost me $53 shipped.
Now I just need to buy a 3/4" bar holder and I'll do the same thing to it.