Pneumatic Rivet Nut Tool Pneumatic Rivet Nut Gun 1/4 & 5/16 & 3/8 Mandrels Rivet Nut Rivnut Gun Come with 5 additional mandrels of each size Ultra Fast Installation of Rivet Nuts from M3 to M12. Select your perfect Air Rivet Nut Tool, contact us for a demo and find a local stockist Seesaw reversible triggler makes the tool very easy to operate with one hand Pneumatic systems use compressed air to transfer energy. Learn about pneumatic systems, their components, & their industrial and commercial applications UW-NR400S can pull nuts in 3 sizes (1/4-20 & 5/16-18 & 3/8-16) and iron, aluminum and other materials Pneumatic Rivet Nut Gun with 4 -change Locking Head Gun 10-24, 10-32 Torque adjusted by built-in air regulator and air pressure