The Toro Co. said it has bought Astec Underground Inc.'s plow, trencher and horizontal directional drills business.Toro buys underground tool businessFebruary 21, 2012 The Toro Co. said it has bought Astec Underground Inc.’s plow, trencher and horizontal directional drills business. Read the rest here Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Tumblr (Opens in new window)