Specs: Description: Chain Loop .325 Semi-Chisel .058 66DL , Pitch: .325″ , Gauge: .058″ , Drive Links: 66 , File: 3/16″ , This saw chain met the kickback performance requirement of ANSI B175.1-2012 when tested according to the provisions of ANSI B175.1-2012 low-kickback saw chain meets the kickback performance requirement of CSA Standard Z62.17 , Features the Centri-Lube oil distribution system to extend the life of your saw chain , Low-kickback semi-chisel saw chain for added safety , Out of package sharp and ready to cut; a sharp chain is a safe chain , Heat-treated and hard chromed cutters deliver a weather-resistant chain that cuts efficiently and extends chain life Replaces OEM Numbers: Oregon: J66 – 21BPX Chain Compatible With/Replacement For: EFCO-EMAK – 147, 152, MT5200, 156, 165 HUSQVARNA – 234, 238, 242, 246, 340, 340E, 345, 345E, 346, 346xp, 350, 350E, 351, 353, 435, 435E, 440, 440E, 445, 445E, 450, 550XP, 550XPG, 338XPT, 339XPT, 36, 41, 136, 137, 141, 142, 235, 235E, 240, 240e, 55 Rancher, 254, 254XP, 257, 261, 262, 262XP, 357XP, 359, 362, 362XP, 455 Rancher, 460 Rancher, 555, 550XPG, 560XP, 560XPG JONSERED – 2054, 2055, CS2156, CS2159, 2149 Turbo, 2050, CS2145, CS2149, CS2150, CS2152, CS2153, CS2240, CS2245, CS2250, CS2250S, CS2252, CS2253, 45, 49, 50, 51, 52, 410, 420, 425, 435, 450, 451, 455, 510, 521, 535, 520SP, 535, 2163, CS2163, CS2255, CS2258, CS2260 REDMAX – G390, G450AVS, G455AVS, G530, G5000, G5000AVS SOLO – 651, 651SP, 652