Pusher Leg

An air pusher leg, also known as a pusher leg, is a tool used for drilling in tunnels and for drifting and tunneling operations: 

• PurposeAir pusher legs are used for drilling holes in the ground for purposes such as exploration, rock excavation, and installation of support structures. 
• FeaturesAir pusher legs are designed to be sturdy and simple to use, and are easy to carry. They are also suitable for inclined drilling and offer complete freedom of movement in any position. 
• ComponentsAir pusher legs typically include a push button valve for momentary air pressure release, an operating knob for fine adjustment of feed pressure, and an air hose connection. 
• ApplicationsAir pusher legs are used in conjunction with rock drill machines.