Astro Pneumatic 13” Plusnut and Extra-Long Rivet Nut Setter Kit Metric & SAE 1450 The Astro Pneumatic 13” Plusnut and Extra-Long Rivet Nut Setter Kit Metric & SAE 1450 is used for setting bulbed PlusNuts, longer than standard rivet nuts and even standard rivet nuts. Includes 9 SAE and Metric sizes: 10-32, 10-24, 1/4-20, 5/16-18, 3/8-16, M5, M6, M8 & M10. The Astro Pneumatic 13” Plusnut and Extra-Long Rivet Nut Setter Kit Metric & SAE 1450 features the markets most popular rivet nut setting tool (Astro 1442) adapted for PlusNut and long rivet nut use.