The Astro Pneumatic 3/8" Capacity Pneumatic Rivet Nut Setting Kit, No. PRN1, is suitable for metric and SAE applications. The kit includes eight mandrels/nosepieces in M4, M5, M6, M8, M10, 1/4", 5/16" and 3/8" sizes. The tool instantly sets rivet nuts with the pull of the trigger, and it quickly un-threads set rivet nuts by operating free spinning rear wheel. Capable of 2,680 lbs of instant air-hydraulic pulling force, the tool offers a max capacity of M10 (3/8”) steel and aluminum rivet nuts and M6 (1/4”) stainless rivet nut. The 3.59-lb tool has a tool stroke of 6.5mm and an air consumption of 3 cfm.