TT4D: Where Defense R&D Money Comes from and Why it Matters

tt4dTOUGH GUN TT4A Reamer Power Through Weld Spatter for Increased Uptime and Weld Quality. The TOUGH GUN® TT4A reamer is a robotic nozzle cleaning solution that maximizes765 posts. 168 followers. 1 following. agent.tt4d. TT4D. tt4d.cc. Follow. Photo by TT4D on April 06, 2019. Photo by TT4D on April 05, 2019. Meta.