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2. Jointing (sharpening) - Wikipedia

   en.wikipedia.org/wiki/Jointing_(sharpening)

   Circular saw blades are jointed prior to sharpening so that all teeth protrude from the blade the same distance from the centre. Jointer knives are ground until they are all the same length prior to sharpening. The edges of a card scraper are jointed by running the edge over a file or a sharpening stone prior to using a burnisher to turn the burr.

3. Riving knife - Wikipedia

   en.wikipedia.org/wiki/Riving_knife

   A splitter is a stationary blade of similar thickness to the rotating saw blade mounted behind it to prevent a board from pinching inward into the saw kerf and binding on the saw blade, potentially causing a dangerous kickback. [7] Like a riving knife, its thickness should be greater than the body of the saw blade but thinner than its kerf. [7]

4. Circular saw - Wikipedia

   en.wikipedia.org/wiki/Circular_saw

   A hand-held circular saw is the most conventional circular saw. This miter saw is a circular saw mounted to swing to crosscut wood at an angle. A table saw. Tractor-driven circular saw. A circular saw or a buzz saw, is a power-saw using a toothed or abrasive disc or blade to cut different materials using a rotary motion spinning around an arbor.

5. Edmond Michel - Wikipedia

   en.wikipedia.org/wiki/Edmond_Michel

   Michel then tried again, using a piece of wood with a notch carved into it. In the notch, he mounted the same mechanism as the mechanical reaper, but with a 6-inch blade. This was the first electric circular saw. After a New Orleans newspaper ran an article about Michel's invention, he was approached by Joseph W. Sullivan.

6. Tabitha Babbitt - Wikipedia

   en.wikipedia.org/wiki/Tabitha_Babbitt

   The circular saw was connected to a water-powered machine to reduce the effort to cut lumber. [ 4 ] [ 5 ] The first circular saw she allegedly made is in Albany , New York . [ 6 ] In the summer of 1948, a version of Babbitt's saw, built to her specifications, was on display at a Shaker exhibit at Fenimore House in Cooperstown, N. Y., as a loan ...

7. Honing steel - Wikipedia

   en.wikipedia.org/wiki/Honing_steel

   A honing steel on a cutting board Common steel for use in households SEM images of the cross-section of a blade before (dull) and after (sharp) honing with a smooth rod [1]. A honing steel, sometimes referred to as a sharpening steel, whet steel, sharpening stick, sharpening rod, butcher's steel, and chef's steel, is a rod of steel, ceramic or diamond-coated steel used to restore keenness to ...