The GP51 Pusher Leg (also known as "Empujador Perforadora" in Spanish) is a versatile double-action pusher leg made with aluminium alloys developed for use in spacecraft. Its simple yet robust design makes it easy to use and maintain. The simple design also makes it quick & easy to attach and detach from the jackleg drill. The feed control is conveniently placed on the pusher leg. Its double-action mechanism allows operators to use pneumatic power to both push out and pull in the jackleg attachment. It is specially designed for use with the G16W jackleg drill.