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A rock drill is a machine designed to drill through rock.

Jackleg drill (air-leg drill, pusher-leg drill)
A jackleg drill is a type of handheld rock drill attached to a telescopic cylinder which provides the bit pressure required for drilling.

Jackleg drills may be hydraulic, electric, or pneumatically powered, with pneumatic being the most common.

Column drill
A column drill is a type of rock drill in which the drill is mounted to a column which is normally held in place by blocking the column between the floor and the back of a drift.

Tripod drill
A tripod drill is a type of rock drill in which the drill is mounted to a tripod assembly.

Sinking Hammer
A sinking hammer is a type of handheld rock drill designed for drilling down holes.

Jumbo Drill
A jumbo drill is a type of rock drill in which the drill is mounted on a movable boom.