The 45-Degree EZ Log Tenon Cutter uses ONE blade to cut a tenon.
These blades are made from hardened steel, and are double-sided. When one side gets dull, simply flip it over to use the other side. The 45-Degree EZ Log Tenon Cutter uses ONE blade to cut a tenon. These are slightly longer than the blades for the 90-Degree cutter, so they are not interchangeable.