So my dad sent me a really nice 12-1/2 scraper plane. Its pretty much perfect, but had no blade. I ordered one from hock which arrived today. The cutting edge is cut at a bevel, rather than at 90 like I'm used to with other scrapers. Which way does the blade face, which way should I burnish it, and why does the hock blade have a little hole drilled in it on the side. Also, any info on the angle adjustment would be great.