Listings Mast & Substructures Continental Emsco 20FT Box on Box Substructure & 1MK Mast – Used By admin 9 years ago Missing both middle section on mast (middle and upper) Box on Box Substructure – 20 FT Drill floor – Electric Drawworks design Cantilever type mast – 142 FT – 1,000,000 lb SHL on 12 lines Continue Reading Previous Air Winches, Floor Winches, Manrider, Derrickman Monkey Board Winches – Rebuilt or NewNext Baylor Elmagco Eddy Current 6032 Brake – Rebuilt