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The MITUTOYO 513-409-10T is a horizontal-style dial test indicator designed for precise surface and runout measurement in machining, metrology, and inspection applications. It features a maximum measurement range of 0.008 inches (0.20 mm) with a dial graduation of 0.0001 inches (0.0020 mm), providing resolution suitable for tight-tolerance work. The yellow dial face uses a 0-10-0 bidirectional reading format for easy interpretation of both positive and negative deflection. Accuracy is rated at 3 micrometers. This indicator is intended for use by machinists, quality control technicians, and toolroom professionals who require repeatable, fine-resolution measurement in a compact form factor.
The 513-409-10T is suited for horizontal mounting configurations typical in surface plate inspection, lathe runout checks, and fixture alignment tasks. The included accessories support flexible setup across a range of workholding and indicator-mounting arrangements. The 40 mm diameter yellow dial provides clear readability under shop lighting conditions. This indicator is appropriate for both production floor and dedicated metrology environments where repeatable short-range deflection measurement is required.
Designed as an OEM-style horizontal dial test indicator compatible with standard indicator stems and swivel clamp mounting hardware as included in the accessory kit.
Installation is performed by qualified machinists or metrology technicians. The indicator should be mounted securely using the included swivel clamp and holding bar, with the contact point oriented perpendicular to the measured surface to minimize cosine error. Ensure the workpiece and mounting surface are clean and free of debris before zeroing the dial. Do not exceed the maximum measurement range of 0.008 inches to avoid damage to the internal mechanism.
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