1/2 Capacity Automatic Rivet Nut Setting Kit - Metric SAE Automated operation. One pull of the trigger sets and unthreads the tool from rivet nuts up to M12 and 1/2. Includes 10 mandrels / nosepieces in the following sizes: M5, M6, M8, M10, M12, 10-24, 1/4, 5/16, 3/8, 1/2. Simple mandrel thread size changes, push back spring loaded roll pin hex retainer under nose cover to unlock and unthread mandrels by hand. 4270 lbs of instant air-hydraulic pulling force. Up to 7mm of adjustable stroke length, set by rotating the rear drum to your desired stroke setting PRN2 Yes - Gasoline engine exhaust (condensates/extracts)