Makita Spare 25cm Chainsaw Bar DUC254 DUC256 DUC254RT DUC256PG2 Chainsaws Spare 25cm Sprocket Nose Bar. The Makita 10"" sprocket nose guide bar is the ideal accessory for the Makita DUC256 18v LXT brushless cordless 10"" top handle chain saw (sold separately). The slim contour and lower weight make it easy to manoeuvre for efficient performance. Features Slim contour for less weight and increased maneuverability Designed to work with narrow kerf chains for increased cutting efficiency Sprocket nose for improved chain life For use with 3/8"" pitch, 0.043"" gauge chain