From the Manufacturer
The Astro Pneumatic PR14 Air Riveter is designed for heavy duty industrial application of rivets from 3/32 to 1/4-inch. This tool will increase productivity in any field. Range of use includes industrial, fabrication shops and body shops. Specifications: Rivet Capacity: 1/4-inch, Overall Length: 10-7/8-inch (280mm), Net Weight: 3-1/2-pound (1.6kg), Pulling Force is 633 pounds, Stroke: 15mm, Motor: 1/2hp, Air Inlet Thread NPT: 1/4-inch, Air Hose I.D. Size: 3/8-inch (10mm), Avg. Air Consumption.: 2.320 Liter/Stroke, Air Pressure: 90-120psi. The instructions show you where to find all 5 nose parts. Three are under the unit, one is in the unit and the other is in the bag. Parts break down in the form of a pdf manual: http://www.astrotools.com/index.php/air-riveter-3-32-1-8-5-32-3-16-and-1-4-capacity.html http://www.astrotools.com/pdf/PR14.pdf
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Includes the following nosepieces: 1/4-inch(6.4mm), 3/16-inch(4.8mm), 5/32-inch(4mm), 1/8-inch(3.2mm), 3/32-inch(2.4mm), 3 Nose pieces are screwed onto the base
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
Pulling Pressure – 2423 pounds