Yankee push drill

Sincere thanks to all for their input.
I've posted a photo of the push drill in alt.binaries.woodworking. No idea what the bits look like in detail yet. If I was making them, they'd just have a groove all the way around so it didn't matter about lining up. The collet would squeeze the ball bearing into that groove to hold while using.
Bill.
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This would be great if you wanted them to spin. However you don't so there is no need to have a groove all the way around. They only go in one way.
-Jack
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