Blade for lawn tractor lawn mower compatible A: Twin Cut 102, right-hand rotation, HF2415SB. HF2417HM, HF2417HT Features: Length: 513 mm Centre hole diameter: 18.5 mm Side hole diameter: 9 mm Side hole centre distance: 65 mm Code: 16-291 Reference code: BUN 194-OL H O ND A