Below is pictured a portable hydraulic powered Dill with #5 MT spindle and 3″ capacity. Generally we make custom jigs to mount the drill to your project. In the included picture we are drilling 2″ holes through hinge pins on a Oil Drill Rig working from a manlift.
We also have various magnetic drills for either drill bits or annular cutters. The job pictured below was done on another Oil Drill Rig working suspended from a cable basket.