The Astro Tools 1/2" and 3/8" ONYX Nano Angle Impact Wrenches, Nos. 1832 and 1838, are designed to offer the power to remove stubborn bolts in difficult to reach areas. With a full head length of 3.46" and a long reach handle, these tools fit into confined spaces with a slim profile. These tools offer 415 ft-lbs of maximum torque and offer enough power for a variety of applications.