Hi Ralph, Thanks. Since going to square bearings 5 years ago I have no more maring problems. Here is the square bearing bit source, White side machine:
The bit is also available with 1" flutes under another part number. Give them a call. they are very helpful.
The bearing I use is Whiteside part# B3SQ 1/2" square 3/16 inside diameter.
I missed you at Strasburg, stop by my tables in the engine house this April. Tom