Wain-Roy Swinger Couplers rotate up to a total of 90 degrees, 45 degrees each side of center, for greater control and flexibility of any quick change attachment system. Buckets and specialty attachments such as rippers, jaws, grapples, compactors and hammers can be rotated to the desired position to achieve maximum production. Greater tool and attachment positioning flexibility increases efficiency in any work area. The hydraulic cylinder is positioned to minimize movement and provide protection from debris and excessive wear.