Blade for lawn mower mowers Compatible with 50 "from 1997 and earlier Features : Length: 438 mm Centre hole diameter: 10 mm Side hole diameter: 7.9 mm Side hole centre distance: 63.5 mm Code : 22-156 Reference code : 742-0171, 742-0171B 942-0171B, AR-CP-MTR-50, AR-MTR-50 MTD