Hellow guys, Welcome to my website, and you are watching Roctech ATC CNC, 24 tools Automatically change,0.8-1.2 second to change any tool. and this vIdeo is uploaded by Roctech - CNC at 2016-04-12T23:47:18-07:00. We are pramote this video only for entertainment and educational perpose only. So, I hop you like our website.