View Single Post
      11-16-2012, 09:41 PM   #2
cssnms
Brigadier General
United_States
145

 
cssnms's Avatar
 
Drives: 2011 BMW 335d
Join Date: Sep 2010
Location: Murland


Posts: 3,180
iTrader: (4)

Apparently it's called "swaging."

Found this video in case anyone else is curious.