Posted: Fri Mar 14, 2014 12:10 pm
It seems that both camps may be correct. The proper term for the things on eBay appears to be a "dimple die set". In which case, the ones for sale are the male portion of the set, and the corresponding female pieces are missing in action.
See the following links for some examples:
http://www.aetools.co.uk/product-spring ... ts-886.php
http://www.swagoffroad.com/SWAG-Dimple- ... _p_92.html
http://www.mittlerbros.com/index.php/mi ... 7AodcU0AVA
They are indeed used to form "chamfers" in sheet metal. One application of this is to prepare aircraft sheet metal for riveting. And I saw something very similar shown with snap-installation equipment.
See the following links for some examples:
http://www.aetools.co.uk/product-spring ... ts-886.php
http://www.swagoffroad.com/SWAG-Dimple- ... _p_92.html
http://www.mittlerbros.com/index.php/mi ... 7AodcU0AVA
They are indeed used to form "chamfers" in sheet metal. One application of this is to prepare aircraft sheet metal for riveting. And I saw something very similar shown with snap-installation equipment.