Wheel-mounted down the hole drill FYZQ100F wheel-mounted down the hole drillFYZQ100F down the hole drill: a kind of new, high efficiency, ... drill 45°-90° angle; Adopt the M43*10*1.5 Screw hole, thaton the both side of lead rail, to fix ... , water and electricity, railway, highway blast hole and every kind of sculpt hole drilling.ModelFYZQ100FHole diameter75~130mmDepth20msize2200*450*543mm wheel-mounted ...