Here is one brand new 22 inch Oregon replacement full chisel chain that Fits BLUE MAX chainsaw 21117 20158 & 20160 models with 22 inch bar. 21LPX86. This chain is .325 pitch .058 gauge and 86 drive links.This Oregon chain replaces the stock Chinese chain on Blue Max imported 22 inch bars. Check bar for specs to confirm. 20 series is the high performance choice for homeowners, arborists and commercial cutters.It has blued full chisel cutters for improved strength and corrosion resistance. X grind improves sharpness with substantial speed improvement and improvement in boring and under cutting.