Structural box wrench heads are offset from handle to permit clearance of obstructions. Handles are tapered to align bolt holes. Often called "Box Spud Wrench". Made of forged alloy steel. Industrial black finish. Made in U.S.A. 1-1/8" Wrench opening. Head measures 1-53/64" diameter by 7/8" thick, 15" overall length. 2-9⁄64" Offset at end.