The new Hitachi CS51EAP chainsaw is powered by a 51 cc commercial grade Pure Fire engine. This saw was built for the commercial user who needs to be able to cut large trees quickly. The CS51EAP features a compression release for easy starts, a sprocket nose bar, and a bucking spike to provide superior control and ease of cut. The CS51EAP is also simple to operate with side access chain tensioning and an adjustable oiler. Other features include a half throttle choke with trigger release for easy start and warm up, and tool-less access to the air filter. Depending upon user preference, optional 16 in. and 18 in. bars and chains are available. For industry leading protection, Hitachi?s warranty has you covered, 7-yr consumer, 2-yr commercial and 1-yr rental.