1Dial Indicator: Comes with a wide measuring range from 0 to 1mm, the dial indicator is very practical and reliable. 2Accurate Using: Adjustable control arm allows for accurate alignment, which also enables high accuracy up to 0.001mm. 3Great Material: Adopting high quality aluminium alloy material, not easy to deform, and very durable for long use. 4Extensive Uses: A accurate measuring and testing instruments that suits perfectly for manufacturing and maintenance. 5Easy to Carry: The dial size is 59mm, and the light weight brings more convenience to the carrying as well. Item Type: Dial Indicator Material: Aluminium Alloy Range: Approx. 0 ~ 1mm / 0 ~ 0.04in Accuracy: 0.001mm Dial size: Approx. 59mm / 2.32in 1 x Dial Indicator 1 x Plastic Box When using, please fix the dial indicator on a reliable holder to avoid inaccurate measurement or damage to the dial.