Astro Pneumatic Tool PR14 Air Riveter - 3/32", 1/8", 5/32", 3/16" and 1/4" Capacity
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:

Astro Pneumatic Tool 1423 1/4" Heavy Duty 13" Hand Riveter
The Astro Pneumatic 1423 13-Inch Heavy Duty Hand Riveter is ideal for working in hard-to-reach areas. It is one of the most versatile and powerful hand riveters, taking the hard work out of setting large diameter blind rivets with a patented internal geared mechanism. A one-piece collet case eliminates the need to adjust the tool when changing rivet diameters. Includes 5 nose-pieces: 1/8-Inch, 5/32-Inch, 3/16-Inch, 1/5-Inch, and 1/4-Inch.