Abstract: A flange flush tool includes an outer tube having a first end and a second end, the first end configured to engage the flange, and a shield tube within the outer tube. A channel is defined between an outer surface of the shield tube and an inner surface of the outer tube. The shield tube is configured to move longitudinally within the outer tube.

Abstract: A flange flush tool includes an outer tube having a first end and a second end, the first end configured to engage the flange, and a shield tube within the outer tube. A channel is defined between an outer surface of the shield tube and an inner surface of the outer tube. The shield tube is configured to move longitudinally within the outer tube.

Abstract: A manipulator for remotely controlled underwater operation in a nuclear radiation environment to perform service activities at difficult to access regions of the reactor vessel is disclosed. The manipulator includes six degrees of freedom in its ability to move so that it can get past obstructions inside a reactor vessel to access and service remote locations in the vessel. The manipulator also includes a rotary drive for inserting and removing the manipulator into and from a reactor vessel and for rotating the manipulator within the vessel. It also includes an arm with two rotary joints and three pivot joints that can be deployed for better access to difficult to reach locations. The manipulator, which is remotely operated, can be used to manipulate a variety of tools to perform various service activities. The tools, which are attached to the end of the arm, include a water jet, a gripper, a cutter and a camera.