i like the concept. but think i will just stick with my files...I have the genuine one shown in the picture, excellent tool for sharpening chains. Purchased it from Timber line site, to the best of my knowledge they are not retailed anywhere else by timberline, however there are a sh1t load of Chinese knockoffs that aren't worth a rats ass on Amazon and Ebay who don't respect a logo copyright. Order them at your peril they are rubbish.
https://www.donedeal.ie/tools-for-sale/gold-portable-chainsaw-sharpener-with-3pcs-grinder/32371582
that said, i sorta wouldn't mind a deer antler handle, though! ~