Blitz Round Angle Tips are machined with an angle for better needle visibility. Blitz Diamond Tips are a cold-formed tip, which allows the needle to ride in a 'V' trough. This makes the needle ride constantly in the center of the tip. Blitz Open Shovel MAG Tips ... our top-shading tip! These tips are made for easy cleaning between color changes and precision machined for excellent ink flow and long tip life.