Wondering what this is for?

[juniork5]

Found this snap on in tool box I bought wondering what its for I know its a tap I guess anyone know for what thanks.

 

[larry_g]

I'm guessing that is for rethreading a spark plug hole while redoing the seat at the same time. For older plugs with gaskets and not tapered seats.

lg
no neat sig line

 

[Danglerb]

Wild guess, some kind of ground clamp?

 

[Outlawmws]

I'm guessing that is for rethreading a spark plug hole while redoing the seat at the same time. For older plugs with gaskets and not tapered seats.

lg
no neat sig line

Probably this, but the pics are way too blurry to be sure. If it has SO markings, it surely has a P/N and can be looked up on the SO site.

 

[juniork5]

Ill check the number thanks ill get clear pics

 

[kblazer87]

That is a spark plug hole reconditioning tap. I have a couple sets in my toolbox.

 

[larry_g]

http://www.collectingsnapon.com/catalogs.php?loggedin=0&catalogPage=2123

Found it here, item G

lg
no neat sig line

 

[juniork5]

Thank you thats the one

 

[rsanter]

I'm guessing that is for rethreading a spark plug hole while redoing the seat at the same time. For older plugs with gaskets and not tapered seats.

lg
no neat sig line

stop guessing.....this is correct

bob