HONDA ROTARY CUTTING MOWER KNIFE FOR MODELS HR194 , HR1950 MODEL - TECHNICAL SPECIFICATIONS LENGTH 464 mm CENTRAL BORE 24.2 mm OUTER BORE 14.5 mm CENTRAL BORE INDEX 88 mm CODE: 13270991 ORIGINAL CODE: 72511-VA5-840 , 72511-VA5-E40 , BUN-191 SR