The Greenlee 16V991 is a nut runner designed for 1-1/2" and 1-1/8" conduit nuts. It features a rugged steel housing with rubber grip, reversible ratchet head that provides high torque, and a quick release chuck with 3/4" hex capacity. This nut runner has a compact 10" length that allows access in tight spaces. It requires an impact wrench or suitable power drill to operate. The 16V991 nut runner enables efficient tightening and loosening of conduit connections.