The HR 260 is a self erecting, 75 ton drilling rig particularly suitable for drilling great diameters using the kelly bar system and with casing tubes directly with the rotary. Using augers or buckets, this powerful rig can drill to great depths through some of the toughest rock and soil conditions. Standard rig and low headroom under rig, info on the low headroom Max Dia 16' can drill in 40' headroom Max Torgue and Engine info is the same.