Not only are they almost impossible to sharpen, but blade replacements are usually under $2 each, so they are treated as disposable. Some cheap hand saws for wood can also be a problem.

in the case of a hand saw, along the blade plate. A dado blade is a specialty blade used to create wide grooves in wood for shelving, door panels, inlays, and drawers. Whereas other saw blades ...

Learn more Unlike hand saws that require you to move their blades manually ... more effective when cutting through soft materials like wood or plastic. If you plan on using this saw for a lot ...

hand-cut aluminium alloy plate, nary a CNC tool in sight. The only unusual component is the saw blade itself, which might be a bit tricky to track down if you were so inclined to reproduce the build.