Abstract: A coupler system to facilitate carrying or operating a working tool is provided. For example, a boom frame is rotated about a master pin location to mate with a stick frame at a picker end and coupled to the stick frame with a latching or locking mechanism. The boom frame is further rotated about the master pin location to mate with the stick frame at a grabber end opposite the picker end coupled to the stick frame with an additional latching or locking mechanism. Static stresses are then pre-loaded onto a pulling mechanism which secures the boom frame to the stick frame to prevent failure and dynamic stresses are dispersed onto a compression mechanism to mitigate fatigue. Hydraulic fluid is passed between the boom frame and the stick frame to maintain cleanliness in a hydraulic valve environment while coupling the stick frame to the boom frame.