Once the saw is in the sharpener, you engage the blade and presto, it's sharp again. This feature is especially handy when you have hours of cutting to do and might need to sharpen the blade more ...

and add hours to your project's timeline. So when a circular saw blade gets dull, it seems both thrifty and efficient to have a go at sharpening it. So far, so good. But then you see a YouTube ...

And so, when it comes time to sharpen or replace a table saw blade, woodworkers and tradespeople often turn to shop-made jigs... homemade tools that are used to improve a workshop's other tools.