May be! I'll check and see. Do I take it to someone to have it sharpened or do you just sharpen it with a file?
Usually ours gets pretty mangled by the end of the season...chunks missing out of it. Heh heh! But it's not very old right now...we put it on at the end of last season, I think.
Evening 2Jedismom; I use my flat mill file on the blade. I would recommend using a vise to hold it steady and wear leather gloves, the file can slip and nasty cut from the blade can result. This I know first hand, so to speak.
I have a file guard that is handy when making dull things sharp again. It's just a piece of leather on the shank of the file. Still, simple as it is, it's very handy to help keep fingers intact.