TESA TESATAST Dial Test Indicator Bidirectional measuring with automatic reversal inside the movement. These indicators offer continuous clockwise pointer rotation providing error-free readings. Features Include... 0.020" Range 0.0005" Graduations 0-10-0 Dial Reading 1.5" Dial Diameter 1-7/16" Contact Point Length Automatic reversing contact point Ball bearing lever system with measuring insert swiveling through to 240° Fully jeweled movements Includes Molded Case, Point Wrench, and Extension Dovetail.