Safety blow gun with 15" angled extension is OSHA compliant as it limits pressure to 30 PSI when dead ended. Offers a maximum of 150 PSI on regulated compressed air lines. Blow gun offers 4.5 SCFM at 100 PSI. This extension is perfect for those hard to reach places. Has a 1/4" NPT air inlet and a nozzle thread size of 1/2" - 27.