Anytime Tools Dial Indicator 1"/0.001" Professional Super Smooth Movement Quality Carbide Anvil AGD Spec w/LUG BACK Professional Grade. Super Smooth Movement. Carbide Anvil Ball. Spindle rack pinions and gear trains are made of high grade steel components ensuring long life Easy to read 2-1/4'' white face with black markings. Crisp graduations Durable satin chrome finish Built to AGD specifications with lug back configuration Graduations: 0.001'' per line, 0.1'' per revolution