Turning Archive 2007

Hole diameter in Jamieson standard boring bar?

Craig Daymon
>What is the diameter of the hole (or of the swivel tip holder post) in the Jamieson standard boring bar? I'm planning on making a boring bar myself (or possibly 2) and want to know the size to be compatible with the swivel tip cutter post. I know the cutter is 3/16".

Or is this even important? For those with the swivel tip holder, how often do you alter the swivel position? Maybe I should just drill a 3/16" hole in a 3/4" bar at 45 degrees, add a set screw to hold a cutter and call it done? I think that would also work if I wanted to use the Hunter tip?


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