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The Park Tool DT-3i.2 Dial Indicator for the DT-3 Rotor Truing Gauge improves accuracy and delivers better overall results when engaging in battle with a warped rotor. The Dial Indicator Set bolts directly to the DT-3, and in this v2 model includes an elongated, cylindrical tip that is large enough to work around voids in most rotors.

This precise analog dial gauge is easy to use, and ensures you have the opportunity to achieve the best rotor truing results. Anyone who has serviced disc brakes knows that 10ths of a miliimeter can be the difference between good and great stopping power and even pad wear, let alone peace and quiet.