air grease gun tube

[Ron Horwitz <ronglue@yahoo.com>]

I revcently purchased an air powered grease gun.  It
came with a short metal nozzle.  Is it safe to replace
this with the common rubber whips to gain some
flexibility or will the air pressure blow out the
rubber?  Does anyone know of a source of metal
extensions?  As it stands, this is a really limited
tool - if you can't hit the zerk in a straigh shot,
this is useless.

Thanks,
Ron
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