Thanks Deejay and Aldot, I know very little about chainsaws bldes and chains,I've given he's chainsaw back as I didn't want to order the part and get it wrong and end up with the bill . Sorry to have taken your time up but this information will be good for me as I have a stihl 009 and it will make it easier to get one next time. I didn't know they had a code on them . Cheers