Product Description The indicator set bolts directly to the DT-3 brake rotor gauge and provides more accurate, measurable results. The set comes with an extended cylindrical measuring tip that is large enough to tolerate the recesses on most rotors. Compatibility:DT-3 rotor truing gauge Manufacturer Number:DT-3i.2 Contents:1 x ParkTool dial indicatorincl. mounting material Manufacturer: Park Tool Company 1185 Eagle Lake Rd Shoreview MN 55126 USA info@parktool.com Distributor: GROFA Action Sports GmbH Otto-Hahn-Straße 17 65520 Bad Camberg Germany info@grofa.com