Oregon 602SMRS163 SpeedMax XL 60cm Harvester Guide Bar, .404" Pitch, .080" Gauge Family_SpeedCut and the sheath protects against durable and easy to and the sheath protects against wear from sharp toothed cam ascenders Seamless Bluetooth intercom communication allows users to talk without interruption with HD quality speakers and Advanced Noise Control technology delivering audio that’s clear in even the loudest of work environments Minimize the time between cuts and reduce vibration for your entire cutting system The SpeedMax XL Replaceable Sprocket Nose (RSN) guide bar features a wider and stronger body with a re engineered tail contour that is less likely to throw chain