No whacking necessary to tune your drums | Accurate and quick | Low price | Tension rod torque can be used to tell you when you are over tightening a bolt to prevent thread damage, but is not accurate for drum tuning because of the difference in screw tolerances, plating, corrosion, and thread wear | You can eliminate these problems by using a DrumDial to measure drumhead tension directly from the drumhead, allowing you to precisely tune your drums faster and easier than ever before