MTD YARD MAN GUTBORD CUTTER BLADE FOR MODELS 112/910 , B125 , B1 28 , B/130 , JUNIOR92 MODEL - TECHNICAL SPECIFICATIONS LENGTH 464 mm CENTRAL BORE 10 mm OUTER BORE 8 mm MIDDLE HOLE 63. 5 mm CODE: 13270292 ORIGINAL CODE 742-0507A , 742-0507 , 472-0496A , 742-0496 , 942-0496 SR