Mark Wendt (Contractor) wrote:
> 
> Trying to wrap my mind around this tool.  One of the bullet points says 
> that only one tool needed for right or left hand threads.  Howdeydodat?

It is not like a tap, it has no thread lead.  All the teeth are 
in rings.  The tricks is it only touches the OD in one line 
along the length of the hole.  It can do EXTERNAL threads the 
same way, you orbit around the OD of a post and it will thread 
the outside.  The spindle needs to extend or retract in synch 
with the rotation of the orbit to develop the correct thread pitch.

Jon

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