Wednesday, December 28, 2011

"Scary Sharp" vs. Dull Chisel

 For Christmas I received a bunch of sandpaper so I could create my own "Scary Sharp" sharpening system. This system basically replaces expensive waterstones with much cheaper sandpaper. Unlike water and oil stones, this system doesn't require periodic flattening, because the sandpaper is adhered to a sheet of 1/4 plate glass or granite slab, which are pretty much wear-proof. 
  To use you simply stick the various grits of wet/dry sandpaper to the glass, either by using adhesive backed sandpaper or adhesive spray. The grits usually range from between 80 to 2000.  To start you wet the paper lightly and using a angle guide (or without if your really brave) move the chisel in a firm consistent back and forth motion trying to use all of the paper evenly. After awhile, you'll begin to feel a small wire edge on the back of the chisel. When you feel this edge along the entire back of the chisel, it's time to start honing the back of the chisel. Do this until the wire edge is gone.  I usually do this twice on the coarser grits. Repeat the process of "honing the bevel edge until you feel a wire edge on the back then hone the back until it's gone" for all the rest of the grits. I will sometimes do it twice on a certain grit if I think it needs it. Let's skip to some pictures to help explain.

Glass plates with different grits marked by labels.

Rusty back of dull chisel. Cutting edge is chipped and rusty.

Bevel edge looks pretty sad.
Edge not square and chipped.
There's a little gap in the photos here, but all I did was square the edge on a grinder and then hone the bevel edge until I felt a wire edge on the back, which is what this picture demonstrates.
After I went through all the different grits, I had a nice mirror polish on the back of the chisel. I only honed the first inch or so which is really all that needs to be.
Voila! It shaved a nice thin shaving off my Sharpie! I'm pleased with that! Thanks for reading!


  1. This is Thimble: I finely found thee a legged CrazyCraftsman blog...heard my brother talking about it, and just had to take a look myself...great work, keep it up!(:

  2. Hacking into other people's accounts I see? haha Thanks for looking at my blog. There should be some more posts on here in the next couple weeks, because I have tons of projects to finish. :)

  3. This is Thim: No,there was no hacking, Erika and I have a thing going.
    I herd you had a tun of things you were working on, can't wait to see all your handy tips.

  4. There's a lot about woodworking-type-stuff that I don't know about! I really thought this was interesting:)