Triscope telescoping double-single service rig mast $7.00 Triscope telescoping double-single service rig mast Derricks TobySimmons03 June 10, 2026 Triscope double-single telescoping derrick. Approximately 60’ mast when fully extended. Complete mast assembly with crown sheaves, monkey board/racking board, telescoping sections, raising cylinders, and cables. […]
