1.comfortable holding, BOTTOM exhaust 2.high quality design on the main part 3.rubber sleeves; 1.comfortable holding, BOTTOM exhaust2.high quality design on the main part3.rubber sleeves; 1/2" Twin Hammer Air Impact Wrench Max. torque:570NM Free speed: 7000RPM air pressure: 90psi air consumption: 8cfm Weight:2,20 kg. 1/2" TWIN HAMMER AIR IMPACT WRENCH bottom exhaust