ZQSZ-140/4.1 The pedestal support pneumatic hand-held drilling rig has outstanding advantages in improvingsupport effect, reducing support cost, speeding up roadway completion speed, reducing auxiliary transportationreducing labor intensity and increasing utilization ratio of roadway section, etc. , therefore, it is widely taken anddopted by the main coa -producind countries in the world. representina the important development direction otnational coal roadway support technology. The ZOSZ-140/4.1 pedestal support pneumatic hand-held drilling rig isportable, the utility model has the advantages of safe explosion-proof, large torque, high rotation speed, goodquality, small volume, high efficiency, simple structure, convenient maintenance, etc. . Therefore,the drill has highefficiency, good support quality, low labor intensity and low cost of footage, so it is one of the necessary equipmentin coal mining industry. This machine is mainly used to detect geological structure and also can be used for rockroadway resin bolt mixing and nut installation.