I was wondering how much i should sell a brand new Makita Angle Grinder for?

I have to that i got for free and i allready have one so I dont need these two. One of them is a 5″ and the other is 4-1/2″. They have never been used and are in the origanal package. They havnt even been taken out of the box. What would you buy pay for them if you were going to buy them on e-bay?

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