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Evinrude 25: Two to three weeks sounds about right now for items from the US. Other things I have bought from Sicily and Britain arrive a lot quicker than that and for far less shipping costs to.
Buck: Yes, you need one of these. Everyone with a lathe needs one of these!
What they are used for is holding shafts with no centering hole in them. Lots of starter and electric motor armatures are made this way and if you can’t support the commutator end while cleaning it up, it’s hard to get a smooth cut and have the commutator come out centered to the shaft.
The other way I do it is to make a cap which fits snugly onto the end of the shaft and has a center hole drilled in it. This works good but I can never find the correct cap when I need it and always end up having to make another one. To top it off, this always seems to happen when I’m in a hurry and needed the job done yesterday
Come to think of it, I have a Jacobs armature chuck with the brass jaws that
adjust like a drill bit chuck. Snug it up on the armature, lock it, oil it up,
and away you go.
Your chuck would be much more versatile though!
Prepare to be boarded!