Dial indicators are essential for accurate machining. Use this dial indicator with over 1" of travel and with 0.001" graduations to position or align workpieces before machining. Equipped with rotating face (bezel), bezel lock, and clamp to easily attach to Smithy's magnetic base, 20-000 or to the Mini-Magnetic holder 19-011. Use a dial indicator to measure axis backlash, spindle run-out, travel, for centering a part in a four jaw chuck, aligning vises, fixtures, and work pieces. This is one of the most important measuring tools a machinist has in the tool box.