Benchtop planer blades, often referred to as knives, are either straight, spiral, or helical. A straight-knife cutterhead (the rotating steel head inside the machine) typically has two blades ...

Its cast-iron base, machined side and bottom and hardened steel blade ensure accurate ... Plus, if sharpening isn’t your ...

The video starts at the forge, where steel is attached to soft iron to form a blank that will become the hand plane blade. This is proper blacksmithing, with autohammers and flames akimbo.