Cutterbar work on the 5209 discbine 

You can use a hand grinder and sharpen the blades !

Easier to just cut one bold head off..... thread it in.......and use it for alignment .....just make sure the bolt is tall enough so you can put a pliers or vice grips on it to remove it.

Would it be possible for you to make a more indeph video on your waste oil heater for your house can't find any your last one got a Lot of views 🤔 ?????

Where did you get your blades Ive a case 3309 some as your 5209 but case send me the wrong blades twice now