YT28A type air-leg rock drill is a new and efficient drilling equipment. It is widely used in stone engineering, mine roadway excavation and drilling blasting holes in various rock drilling operations, and is an indispensable important equipment in mining,water conservancy, building materials, energy transportation, national defense military and geological engineering. YT28A air-leg rock drill has a wide range of applications. It is suitable for drilling horizontal or inclined gun holes in medium-hard or hard (f=8~18) rocks, and can also drill bolt holes in the roof vertically. Generally, the hole diameter is Φ34~45 mm, effective depth of drilling up to 5 meters. The machine can be used with FT160C long air legs and FT160D short air legs according to the size of the roadway section, and can also be installed in the drill rig or drill frame.