Abstract: A heavy duty power operated blind rivet setting tool having a mandrel collection system for drawing the pulled mandrel through the tool to a collection canister at the rear of the tool. The tool is operated by a primary air supply and the mandrel collection system is operated by a secondary air supply located within the physical confines of the tool. A control valve is located in the secondary air line which can render the mandrel collection system inoperative.

Abstract: A light weight heavy duty blind rivet setting tool having one piece upper housing containing a rivet setting mechanism and a one piece lower pressure vessel having an air activated piston operable to pressurize a medium in the upper housing to activate the rivet setting mechanism. The upper housing has a handle area containing a trigger which, through a trigger linkage, operates a valve on the bottom of the pressure vessel which is connectable to an air source. A muffler is positioned adjacent the valve to receive the exhausted air from the pressure vessel after the tool has been operated, to minimize the noise level of the tool operation. The trigger linkage is adjustable to eliminate the tolerance stack-up in the linkage.