Experience more durability, less weight, and superior performance with the Husqvarna X-Force 20 in chainsaw bar. Husqvarna X-Force guide bars are developed with the X-Cut chains to get the best possible performance out of your Husqvarna chainsaw. A smooth, optimized profile, outstanding durability in the nose and bearing system, and an optimized center plate design provide minimum downtime and maximum results. The bearing system has support shields for increased productivity, and a no-grease hole prevents dirt from getting into the bearings while eliminating the need to replenish grease. Compatible with Husqvarna 450 Racher, 545, and 550XP models, this genuine Husqvarna chainsaw bar features a 0.325 in pitch, 0.05 in gauge, 80 drive links a recommended 7/32 in file size. Tough, hardened materials provide a smooth cutting experience. To accommodate other Husqvarna chainsaws, this 18 in chainsaw bar is also offered in 13, 16 and 28 in lengths.