SK 775 Commander Super Series Top Drive Drilling Rig. 92' 350,000# Hydraulic raised and scoped derrick. 150 ton or 250 ton top drive w/ 8 line string up independently powered by Detroit or CAT closed circuit HPU. Trailer mounted or optional self-propelled 6 axle carrier, powered by dual Detroit 60 series engines with Allison transmission. 42x12 water circulating drawworks with 54" dual caliper disc assist brake. 15' Hydraulic scoping sub. Driller's House. Iron roughneck and automated pipe handler for range 3 drill pipe w/ separate HPU.