The HXX 4-Axis GCS900-4E Digital Readout Kit features a fine resolution of 5um along with high-speed numeration. It is built with aluminum alloy, which makes it sturdy and long-lasting. It is resistant to dust and water, which adds to its longevity. It features an automatic X and Y tool compensation function. With this kit, you also get four pieces of high-precision etched glass linear scales. You can choose from the available models between 100mm and 1020mm measuring lengths.