I just made a blade EXACTLY like that out of a large Timken roller bearing from a scrapped bucket loader, though mine has a solid T6 aluminum handle I put on yesterday morning, I took two pieces of flat plate and clamped them over the tang and then wirefed welded the aluminum to make a solid block, I am nwt grinding it down to a handle shape, its for those heavy chopping jobs in the kitchen.
Or frozen zombies from the Alaskan tundra.