Can I ask a stupid question? What IS a "D" bit? I keep seeing it mentioned and when I search "D bit" you can guess how many hits I get. :'( Every post has a letter "D" in it. A link to a picture would be great. This has been bugging me for weeks.
OK, I think I got the picture. I would imagine they have to be clamped in the tool holder with an over hang that is short as possible to prevent wobble?
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