The Oregon 178RNDD083 Power Match guide bar is a high-performance 17-inch chainsaw bar designed for professional loggers and arborists. Featuring a 3/8-inch chain pitch and a 1.5mm (.058-inch) gauge, this durable guide bar ensures precise and powerful cutting. The replaceable sprocket nose minimizes wear and tear, extending the bar's lifespan and providing smooth, efficient operation. This guide bar is compatible with various chainsaw models from Husqvarna, Jonsered, Dolmar, Makita, Partner, and Poulan that use the D083 mount type, making it a versatile choice for heavy-duty applications.