There are numerous ways to sharpen chisels. Some do it strictly by hand, while others use a jig. Some sharpen with oilstones, others with waterstones, and still others with diamond stones. Some use a strop at the end. This instructable will demonstrate the use of waterstones and a honing guide, and will get your chisel sharpened to 8000 grit with a microbeveled edge. Now here's what you need:
Total Cost (at time of posting):
- Chisels: I recommend Irwin brand chisels (formerly Marples). Woodcraft sells a set of four for $39.99. This instructable will work for any chisel, but you might need to do it more often for the cheaply-made ones.
- Honing Guide: A honing guide keeps your blade at the right angle for sharpening. Those who are more experienced go by feel, and indeed you may try this, but I use a jig. The one I use costs only $11.99 from Woodcraft.
- Sharpening Stones: As I just mentioned, this instructable will demonstrate sharpening with waterstones. I use two combination stones (again, from Woodcraft), that take the sharpening through grits of 800, 1200, 4000 and 8000. The 800/4000 stone will set you back $24.99 and the 1200/8000 stone will cost $49.99.
- Nagura Stone: If you use a waterstone with a grit of 6000 or higher, you will need a nagura stone. The nagura stone creates the "slurry" that helps sharpens the chisel. The same link for sharpening stones above contains a link for the nagura stone, which you can buy for $9.99.
$136.95. Of course, if you only need one chisel you can knock $20 to $30 off of that total, depending on the size of the chisel you get.