MTD YARD MAN GUTBORD TAG BLADE FOR MODELS 110/760SL , C40 , C40SL , NICE 40SL MODEL - TECHNICAL SPECIFICATIONS LENGTH 390 mm CENTRAL BORE 10 mm OUTSIDE BORE 7. 9 mm CENTRAL HOLE INDEX 63.5 mm CODE: 13270314 ORIGINAL CODE 742-0118 , 942-0118 , 090.47.389 , 090.47.220 SR