Mark a cut line on the plywood with a straightedge and pencil. Lay the plywood on a work bench so that the cut line is hanging over the edge.
Install the Dremel Wood Flush Cut Blade onto the end of the Multi-Max. This is done by inserting the blade on the tip of the cutter and tightening the bolt with an Allen wrench.
Plug the Multi-Max into an outlet and start the tool at medium speed for optimal control.
Align the Multi-Max's blade with the cut line and hold at a 45-degree angle.
Push the tip of the blade into the wood along the line. Increase the tool's speed to its maximum setting.
Guide the blade's tip along the cut line by applying gentle forward pressure. Continue cutting until you reach the end of the cut line.