MTD YARD MAN GUTBORD MOWER BLADE FOR MOWER MODELS 38 110/960 N , 110/960 SL , 111/960 , SUPER111 , SUPER111SL MODEL - TECHNICAL SPECIFICATIONS LENGTH 478 mm CENTRAL HOLE 10 mm OUTSIDE HOLE 7. 9 mm CENTRAL HOLE INTERAXIS 63.5 mm CODE: 13270321 ORIGINAL CODE 742-0122B , 742-0122A , 090.47.668 SR