Anytime Tools 7 JEWELS TEST DIAL INDICATOR 0.0005" + UNIVERSAL MILL HOLDER Set includes an indicator and a universal indicator holder for milling machines and jig borers. Easy to read 1-3/16'' white face with black markings. Graduations: 0.0005'' per line. Multi-Angle Indicator Holder Ideal for Bridgeport Does not disturb the working tool Mounts with single pressure screw directly on machine quill, bypassing the working tool. Clamping Diamter: 1-7/8"