Somehow, I got wind of a new Husqvarna saw, I think it is a 540xp Mark III. Early 2023 release, a 40cc saw, supposed to be the competitor to Stihl 201. That led me down a rabbit trail of European websites and somehow I ended up at the one below. On that page, the videos are not in English, beats me, sounds like German maybe? Anyway, there are a bunch of cool tools. I landed there due to a new chainsaw file gizmo that they have. Very unusual. I watched a lot of the video and I got to a spot where they showed the actual grinding of a tooth and it appeared to me that the filing process removes the gullet rounded shape and makes it a straight angle. Anyway, in addition, there are a bunch of interesting tools/toys on the page, including an armored 'suit' that you wear to keep falling widowmaker limbs from (hopefully) injuring you. I also found the motorized (with a cordless drill) wedge system interesting. Home | Schleiferl - ValFast - Drill Fast | Bast-Ing GmbH