It's called a rivet set. Rivets are actually driven from the head end, and
the shop head (the flattened part) is formed against a bucking bar.
You can put a rivet set into a regular automotive air chisel, but it's hard
to do a decent job that way because air chisels have on-off triggers. Real
rivet guns have sensitive triggers and can be adjusted to just deliver one
blow at a time when the trigger is worked properly.
You could hand-hammer against the back of the rivet set, to do just a few
rivets.
Rivets can also be squeezed, which makes nice and uniform heads easily, IF
your rivets are all close to an edge - rivet squeezers have fairly shallow
throats.
If you Google "Rivet set" you'll find lots of suppliers.
Karl
-----Original Message-----
From: Robert nogueira
Subject: [Bulk] [Shop-talk] Rivets backer
I need to install some 1/4 inch rivets in my current project. These are the
old fashion solid metal rivets with a domed head. I have had no problem
mushrooming the stem with a hammer. My problem is that the round head tends
to also flatten on the crown. What I need is a backer that the round head
can sit in when hammering the stem. I'm sure there is a tool for this but I
have no idea what it is called much less where to buy one.
Can anyone help me with a name and source for such a tool?
Thanks for any help.
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