. This allows the wrench to operate at any angle and navigate around obstructions in its swing path, and the longer length offers added reach and increased leverage. The 12-point box end fits multiple types of fasteners including 6-point, 12-point, and square. 16 x 18 mm Long Flex 12-Point Ratcheting Box End Wrench The wrench is abrasive-blasted to create a finely textured finish and then plated with a trivalent chrome process, ensuring that the finish won't flake off or corrode over time.