Tri-Bor The prototype design of Barbco’s newest machine, Tri-Bor. This new concept incorporated auger boring, directional drilling and pilot tube technology into a single machine. February 14, 2011/by barbco https://www.barbco.com/wp-content/uploads/2020/07/Barbco-Super-B-with-Writing-1.jpg 0 0 barbco https://www.barbco.com/wp-content/uploads/2020/07/Barbco-Super-B-with-Writing-1.jpg barbco2011-02-14 15:05:012018-02-14 15:05:27Tri-Bor
