Profilometer Stylus Holder With Base Set - SJ Holder and Base Set Complete KitThis is our complete kit that includes the SJ Holder itself and the base set. This profilometer stylus holder makes it a lot easier to measure your cylinder bore surface finish. The holder helps to take more accurate and repeatable measurements by reducing the element of human error. If you're serious about getting the most easy and accurate readings, then you need this tool in your shop. Use the included base plate as a convenient way to hold and