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Doler cooper pd-205 automatic air drill
DOLER COOPER PD-205 AUTOMATIC AIR DRILL
Doler / Cooper Tool PD-205 automatic advance pneumatic drill with automatic advance and reverse. This tool is used to drill counter sunk screw holes, typical in a production environment. Uses non standard but widely available drill chucks and collets. Used in a wide variety of aircraft, truck trailer and RV repair and industrial assembly work.
Automatic mechanical/air-feed drills, tappers and back spotfacers are equipped with either a short/a long nose piece depending upon the length of the cutting tool holding device - i.e. drill chuck, tap chuck, morse taper adaptor, etc.
Reducer bushings are occasionally used to reduce the thread size in a specific nose piece to adapt it to accommodate smaller thread drill bushing tips. Close fit between mating shank of tip and hole in lock liner bushing holds tool in alignment to produce straight close-tolerance holes.
