Air ratchet wrenches with a 3/8" coupling and proven reliability. This is one of the world’s best-selling wrenches. The 1077XPA with an advanced head design offers a longer service life. Maximum torque of 73 Nm and a 360° adjustable exhaust directs air away from the operator, speed regulator lever. Power supply: Lubricated compressed air - Recommended pressure 6.3 Bar