The older ones (about three years ago) were all metal and were much better
quality and were worth the $129 although I got mine for more like $80 on
sale. It paid for itself the first time I sharpened all my chains, about 15
of them for the different saws and for the ripping rig. I tend to sharpen
more often and replace chains more often so they don't get so damaged as
well.

Haven't seen any of the older ones on sale anywhere. The new ones are all a
resin I think.

Brian