Features High Quality Material: The dial indicator is made of high quality aluminum alloy, which has super smooth movement, corrosion resistance, wear resistance and durability. Featured Function: The dial indicator can be accurately aligned by adjusting the control arm. Performance: The dial indicator prevents dust and debris from clogging the gear and helps prevent measurement errors. Locking Screw: The dial indicator's locking screw is fixed in place to help ensure consistent measurement. Professional Application: This is a accuracy measuring and testing instrument suitable for manufacturing and maintenance. Specification: Item Type: Dial Indicator Material: Aluminum Alloy Range: Approx. 0-10mm / 0-0.4in Accuracy: Approx. 0.01mm / 0.0003in Dial Size: Approx. 54mm / 2.1in Package List: 1 x Dial Indicator Note: When using, please fix the dial indicator on a reliable holder to avoid inaccurate measurement or damage to the dial. Package List 1 x Dial Indicator