C-B3 cortosis battle droid

Cortosis battle droids were a line of droids developed by the Techno Union to specifically combat Jedi. Their outer shell was made out of cortosis, a substance that can block lightsaber attacks. They were first deployed in limited numbers on Tatooine, but were used more extensively in the attack on the Jedi Temple and the defense of the Techno Union foundries on Metalorn. This line of droids was effictivly shut down after Anakin Skywalker destroyed their manufacturing plant on Metalorn 10 months A.B.G.