Yt29A Pneumatic Vertical and Horizontal Air Leg Rock Drill- YT27 Air leg handheld rock drill for driller drilling rock and break rock ,Pneumatic rock drilling machine Y6, Y19A, Y20, Y24, TY24C, Y26 (Hand Operated); YT24, YT27, YT28, YT29A (Air leg). Our air-leg rock drills have following features: 1. Fit for wet drilling in medium-hard or hard rock 2.QJ15 Hand-held and Air-leg Rock Drilling MachineHand Held Electric Rock Drill - Alibaba. 658 Results ... YT27 Pneumatic Pusher Leg Rock Drill.... 2013 best product mining machine hand held electric rock drill/air rock....hand held rock drill QJ15.