Bovidix 6166816 Ratcheting Offset Box Wrench, 9/16-Inch x 5/8 Inch Box-end Spherical Reversible Ratchet Wrench (45 Degree Offset), Inch - 9/16"x5/8" Unique, patented, Spherical Drive Wrench fits 6 different types of fasteners Chrome-vanadium steel and special heat treatment process provides high strength and durability 45 degree offset head gives excellent access to hard to reach areas Industrial grade tools