STIHL Rollomatic® E Chainsaw Guide Bar 3005 008 3905General grade laminated construction Made of high grade steel Lightweight and stable with three electrically welded metal plates Sprocket incorporated in the nose for smooth chain movement Reduces wear and enables a considerably narrower bar nose Advantageous for extensive use of the bar nose (e. g., limbing and boring) Helps reduce kickback tendencies Star shaped sprocket can be replaced multiple times, increasing service life of the bar Length: 12"