Both 10 and 12 inches are the most common miter saw blade sizes on the market, but it’s still important to see the difference in those 2 inches. If you already have a 12-inch miter saw, then putting on a smaller 10-inch blade will give you a notable spinning speed boost as 10-inch blades are simply lighter. 10-inch blades are also cheaper in production. If we compare 10 and 12-inch saws, then we can notice that larger models require more power, which will definitely affect your bill. Here are some other important points to consider:
10-inch blades are smaller, which lets them exert more pressure on the workpiece;
12-inch blades have a greater cutting width at all bevels;
12-inch blades cut a bit faster than the smaller ones;
12-inch saws have more powerful motors, which can increase the efficiency of your work.