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Hand-held Pneumatic Rock Drill Keyword:hand-held pneumatic drilling machine; pneumatic hand held drilling rig; pneumatic jumbolter; Rock bolting rigs; roof bolting machine Product Introduction The pneumatic hand-held drilling rig suitable for the coal lane installation with the rock hardness acuities ≤f6, half coal lane of the coal bolting work. It could also drill the anchor hole, mix and install the anchors of the resin type. Technical Parameters Small in size, light weight