small boring bar holder

[Toolmaker51]

I needed a holder for a 3/8" shank boring bar. The logical choice was a scrap cemented cutter by drilling a hole in the end to the depth of length of the boring bar shank, then cross drilling and tapping for a standard 3/8" flat point grub screw

I can always silver solder a new carbide on the 5/8" square

3/8"? 5/8"?
Didn't think Frank S had ANYTHING so small...

Meanwhile, anything dual duty is a plus.