“How can I cut across grain on OAK plywood and get a smooth cut? I used a brand new Freud Diablo 40-tooth circular saw blade and it chipped out on the cut. Please help.”
Submitted by: lpribyl
WWGOA Editor Response:
There are a handful of tricks you can try for cutting across the grain. First, make sure the depth of cut on your circular saw is set so the blade only projects about 1/4″ more than the thickness of the plywood. With that setting the blade exits the top of the cut more horizontally than vertically.
You can also try laying a strip of masking tape down on the face of the plywood, then cutting through the tape.
You’ll get more chips from a free hand cut than from one you’ve used a straight edge on. A steel stud works great as a guide for your circular saw.
Finally, some woodworkers take the time to score the cut line with a utility knife before making the cut, which also helps a lot.
Remember that, as a rule, circular saw arbors have a lot more run out (wobble) than table saw arbors. Even with a great blade, depending on your saw, you may not be able to get as crisp a cut as a table saw can produce.
Thank you for your question.
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