Here is 10 brand new 16 inch Oregon chains. 20BPX066G. List $25.52 each.These chains are .325 pitch .050 gauge and 66 drive links. Echo PART # 20BPX66CQ is the same chain as these. 20 series is the high performance choice for homeowners, arborists and commercial cutters.These are oregons newest low-kickback chains that meet ANSI low-kickback standard without compromising performance or cutting speed. These have blued micro chisel cutters for improved strength and corrosion resistance. X grind improves sharpness with substantial speed improvement and improvement in boring and under cutting.