An extension tool includes a plurality of sequentially arranged links moveable relative to one another. The plurality of sequentially arranged links include a first link. The extension tool further includes a line assembly having a line, the line including a first portion extending through the plurality of sequentially arranged links to the first link and a transition portion extending from the first portion through the first link. The extension tool further includes an attachment feature coupled to or formed integrally with the line of the line assembly at the transition portion of the line to support the line in the event of a failure of the line.