Adjustable, m-style, pocket blow gun, offers easy grip, 2 finger control to adjust from full volume air flow to complete shut off, knurled grip for secure handling even with oily or greasy fingers, fits m style couplers, or any 1/4" industrial style couplers, maximum pressure of 150 psi or 15.9 scfm at 100 psi, blows chips & debris.