KNIFE BLADE FOR HONDA MOWER ROTARY MACHINES FOR MODELS HRB425C , HRB425C1 , HRE42B MODEL - TECHNICAL SPECIFICATIONS LENGTH 425 mm CENTRAL BORE 21 mm OUTER BORE 10 mm INDEX OF CENTRAL HOLES 88 mm CODE: 13270066 ORIGINAL CODE: 72511-VG8-A50 , 72511-VG8-010 , 72511-VG8-000 , 72511-VG8-303 SR