The Social Engineering Toolkit (SET) is a python-driven suite of custom tools which solely focuses on attacking the human element of penetration testing. It’s main purpose is to augment and simulate social-engineering attacks and allow the tester to effectively test how a targeted attack may succeed.

Download
http://www.secmaniac.com/download/

The Social-Engineer Toolkit v3.0 Codename "#WeThrowBaseballs" from David Kennedy on Vimeo.