The first step is to choose the correct blade angle. Depending on the type of media you are cutting, you will want to change the angle of the blade to optimize the quality of the cut. ...The blade angles available vary by manufacturer. The three most common that I see are 30, 45 and 60 degree angles
Generally speaking, vinyl cutter blades are not universally compatible. The blade has to fit snugly in the blade holder and the blade holder has to fit snugly in the tool carriage. So whether you’re purchasing a new blade or blade holder, you have to make sure it’s compatible with the brand of cutter you’re using.