GREENWORKS MOWER ROTARY KNIFE BLADE FOR G-MAX 40V MODELS MODEL - TECHNICAL SPECIFICATIONS LENGTH 457 mm MIDDLE BORE 22.1 mm OUTER BORE 10.5/D-FORM MIDDLE BORE INDEX 89 mm CODE: 13271783 ORIGINAL CODE: 33303463 , 33301487A, SUN-33303463 , SUN-33301487A , GLB33301487 SR