Super Jet SJ impeller thread size/pitch?

be_lain

Currently sending it
Location
Oregon
My impeller on my superjet backed itself off the driveshaft the other day. It mangled the first few threads of the shaft and impeller to where I cannot thread it onto the driveshaft anymore.

I’m wanting to run a tap thru it to clean up the threads so I can reuse it. Anyone know the thread size/pitch of the superjet driveshaft so I can order the proper tap set? Or know a good place to get the tap I need?
 
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