If there isn’t a gap and your saw isn’t making even cuts, the problem could be the saw blade itself, an unstable fence, or another problem.
The blade shouldn’t be loose at all. If it is, try tightening the bevel handle some more.
If the adjustment screw keeps turning when you’re trying to tighten the hex nut, hold it still with the hex key wrench while you tighten the hex nut. Keep in mind that miter saws are factory set to a depth that provides the best cutting ability, but the blade can wear down over time and after repeated sharpening. If that happens, you may need to adjust the depth. Make sure the blade doesn’t extend more than 1⁄4 inch (0. 64 cm) below the table insert when you adjust it. [6] X Research source
You adjust the right fence the same way you adjusted the left. It’s important that both fences line up with both the saw and each other so your cuts are consistent.
If the saw table has major gaps, you may need to replace it.
The saw has built-in stops and markings so you can easily identify the angle you’re setting it to.