ZQSJ series Pneumatic drilling Machine is portable drill with features of explosive-proof, large toeque ,
high rotation speed, light weight, suitable dimension, high efficiency, stable structure and convenient
Used in drilling holes for exploring, discharging gas and water in coal lane and coal-rock lane. With reverse rotated action, it can take out the drill rod and bit easily. It is also the ideal equipment
instead of electric machine for water an gas discharging under mine.