how to make a tool to put the ridge in a radiator inlet?

pretty sure this has been posted on how to build one of these from a bolt and other stuff. did a search but did not turn up what i needed. Thanks for the help.

 

here is one that i made in use , and the finished part.

if no one else posts anything maybe i'll take a few more pictures. i really should make a new one because i made this one for what i thought would be a one time thing , but have used it many times since. i'd make it a liitle stronger (it flexes a bit) and change the design some

 

Williams low buck tools makes a killer one for cheap!

 

how do we get ahold of williams?

 

Just Google it

http://www.lowbucktools.com/

 

Show me how to make one. Williams wants $419.00 for the tool, To much for me, I`m cheap !!

 

check the site metalmeet.com i remember seeing a tool to do this that does this. it fit inside the tubing and seemed to work great.