CHICAGO PNEUMATIC™ 3/16" CAPACITY AIR HYDRAULIC RIVETER SET Chicago Pneumatic™ 3/16" Capacity Air Hydraulic Riveter Set has the features you need to get the job done! Vacuum assist system is designed for greater efficiency in downward rivetingyields less operator fatigue. 3-piece jaw set designed from the highest quality materials; universal air inlet swivel makes for a more maneuverable riveter. Comes complete3/16", 1/4" nose pieces fit in cylinder cap storage area.