SpecificationsNote: T-1X and T-1XS use special "JIFFY" style.401 shank rivet sets for riveting capabilities in extremely tight areas.ModelShank DiameterBore & StrokeBlows per Min.LengthWeightAir PressureAluminum Rivet CapacityT-1X/T-1XS.4019/16" X 1 7/8"2,8504"2 1/8 lbs.90 PSI Max.1/8"T-2X/T-2XS.4011/2" X 2 1/4"2,6006 11/16"2 1/4 lbs.90 PSI Max.1/8"T-3X/T-3XS.4011/2" X 2 7/8"2,1007 5/16"2 5/16 lbs.90 PSI Max.3/16"T-4X/T-4XS.4011/2" X 3 1/16"1,7008 5/16"2 3/4 lbs.90 PSI Max.1/4"Extra sensitive teasing throttleLightweight aluminum handleHardened tool steel piston and steel alloy cylinder for long lifeSpool valve for slow heavy blows needed to drive rivetsModelShank DiameterBore & StrokeBlows per Min.LengthWeightAir PressureAluminum Rivet CapacityT-5X.4983/4" X 2 11/161,8008 15/16"4.75 lbs.90 PSI Max.1/4"T-7X.4983/4" X 5 13/16"90011 15/16"6 lbs.90 PSI Max.3/8"T-9X.4983/4" X 3 7/8"1,1509 15/16"5.37 lbs90 PSI Max.5/16"These tools are extremely powerful for heavy duty riveting. They also perform well for front end work, removal of heavy duty spring bushing and pins and any type of trucks or off road equipment requiring driving, hammering, ripping, scraping or punching.