The Altec DT65H Transmission Digger Derrick is a fully hydraulic, pilot-operated derrick that incorporates a high-flow piston pump into the hydraulic system.
Terex Stand Alone Core Barrel
Terex Utilities' Terex Stand Alone Core Barrel auger tool for digger derricks fits directly onto a standard Kelly bar and can be stored like a standard auger on the boom, eliminating the need for any attachments or having to remove for transportation.