1/2 HP Industrial Quality Air Riveters Comes with the following nosepieces: 3/16”, 5/32”, 1/8”, 3/32”. Powerful, durable, high speed production tool. Quick release air valve permits cylinder to return quickly for high speed assembly operations, prevents overloading for long life. Performs well at any angle. Gets into hard-to-reach areas. Provides quick, quiet and comfortable operation preventing user fatigue Specifications:. Rivet Capacity: 1/4”. Overall Length: 10-7/8” (280mm). Net Weight: 3-1/2 lbs. (1.6kg). Stroke: 15mm. Motor: 1/2 HP. Air Inlet Thread NPT: 1/4”. Air Hose I.D. Size: 3/8” (10mm). Avg. Air Consumpt.: 2.320 Liter/Stroke. Air Pressure: 90-120 psi PR36