Astro Pneumatic Rivet Nut And Pop Rivet Setter Kit Combination 1453 The Astro Pneumatic Rivet Nut And Pop Rivet Setter Kit Combination 1453 features a tool-less quick change design easily transforms between pop rivet, rivet nut and nibbler functions. Includes attachments for blind rivet sizes in 3/32” (2.4mm), 1/8” (3.2mm), 5/32” (4.0mm), 3/16” (4.8mm), and 1/4” (6.4mm), rivet nut attachments in M5, M6, M8, 10-24, 1/4”, 5/16” and round and right-angle sheet metal nibbler. The Astro Pneumatic Rivet Nut And Pop Rivet Setter Kit Combination 1453 is the complete solution for sheet metal fabrication and fastening.