Features and Benefits Dust, water and oil resistant; Inch/metric/fraction conversion; 4" drum preset (101.60mm); Resolution: 0.0005"/.01mm/fractions in 1/64th" increments; RS232 output for direct computer connection; EZ-Drum Reach Electronic Brake Drum Gage measures most heavy duty drums while the wheels are still mounted on the vehicle. Floating zero sets zero anywhere. Hold function. Accuracy .005"/.13mm. Beam has vernier scale to double check reading. Conversion chart on back of main carriage. Includes 4" setting master, steel conical contact points, carriage lock screw and fitted case.
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