The 10 most common woodworking mistakes beginners make
Blowout (sometimes called “tearout”) is the name for the ugly result when chunks or fibres of wood are torn out behind a saw blade. It can happen with any kind of cut, on a table saw or a mitre saw, or even a router or drill. Avoid unnecessary blowout by paying attention to your blade before you start to work.
A dull blade will tear as much as it cuts, and should be avoided for this reason and for safety concerns. Similarly, choose the right blade for the job: A saw blade with fewer teeth will cut faster, but result in more tearout. More teeth on the blade will require a slower hand but result in a cleaner cut. You can often find special blades for materials, such as OSB and linoleum, that are particularly prone to tearout.
Another trick is to protect the material with painter’s tape. Put the tape on the side that the blade will be emerging from, as that’s the area most prone to blowout. Blowout is one of those issues that will continue to be a problem for your woodworking career, but learning how to deal with it early on can seriously reduce the number of headaches.