The machine run at a low enough rpm there is no heat generated to remove or hurt the temper of the blade…
I also have the old school lansky system and used it for years. Even after using this i still finish with a leather
stopping belt i have used since my first knife… With all the points made above i agree but this sharpener does
work as advertised… No more 2 hrs to sharpen a blade and i like that too…
I almost invested in this but for a complete kit it is expensive in my book. Any member have one of these?