ROTARY BLADE FOR ROTARY MOWER ROTARY MACHINES GREENWORKS FOR MODELS 16 40V , LITHIUM-ION MODEL - TECHNICAL SPECIFICATIONS LENGTH 391 mm MIDDLE BORE 22.1 mm OUTSIDE BORE 10.5/D-FORM MIDDLE BORE INDEX 89 mm CODE: 13271782 ORIGINAL CODE: 33303488 , SUN-33303488 , GBL137629 , 137629 SR