Air Inlet Size: 1/4 in Exhaust: Rear Tool Configuration: Pistol Type Housing: Aluminum Weight (lbs): 3.31 lb All tools performance rated @ 90 psi / 620 kPa air pressure. Minimum Hose I.D.: 1/4 in / 6.4 mm Standard Equipment: Operating instructions & service manual E4-2335 and E5-2336 have minimum order quantities