I knew a guy years ago who was making whittling/carving knives out of hacksaw blades. Not sure how he put handles on them, probably just a split dowel sandwich with tape wrapped around it... but man he got those things sharp!
OK. So I use the band saw to cut the handle to shape with pointy sharp edges and then 80 grit sandpaper to make it have no point edges... and that's now convoluted?
Yes, gotta slow down I've found and do little bits at a time so the heat doesn't build up. I assume stainless is denser and probably heats up faster and holds heat longer than brass. I have scorched the wood around pins ( and called it a "special effect") and melted the innards out of a mosaic...
I notice that the style of rasp he is using looks awkward to hold onto on the front end. I think the one Rockler (more $ of course) sells and one of those referred to earlier on amazon have a detachable raised handle that helps make even pressure strokes.
The ones I've seen at Rockler look like a spiderweb of hacksaw blades on edge. The one you show appears to be reversible with two different degrees of raspiness. I think they can take material off fairly quickly, but don't know how rough a surface they leave.
That's really cool looking! Am I understanding this right... Is the front portion/guard going to be damascus and flow with the pattern in the blade? That looks tricky. What material are you thinking for the scales?
I hadn't either until my brother bought me some turning blanks at Woodcaft as a Christmas present.
Here's info: https://www.wood-database.com/brownheart/
"Bonefish" blade (from USAKnifemaker) with Maple(?) burl and Brownheart scales, red accents and mosaic pins just finished up... and a sheath I made for another knife but fits this one better...