Timber Ridge Guide BAR – 12, Web Notes: Carlton Hobby Champ guide bar for chainsaws. Designed for professional, semi-professional, and, Web Notes: consumer uses. Available in 12″ to 20″ lengths. Perfect for today’s smaller chainsaws. Replaceable, Web Notes: alloy steel nose components. Hardened sprocket and bearings. Recommended for saw sizes 2.3 to 4.0, Web Notes: cu. In. (38cc to 68cc). Laminated bar, roller/sprocket nose. For use with chain(s) B1N1CBL45E,, : B1N1C45E., Drive Link: 45, Gauge: 50, Pitch: 3/8LP, Type: Consumer Laminate