This analog height gage comes in two versions, the 6-inch and the 12-inch version, and with graduations of 0.001 inch. The 6-inch height gage sports an easy to read dial face and is corrosion resistant, thanks to its hardened stainless steel column. A lock and screw helps fine tune the gage. The 12-inch screw is integrated with a dual-directional, error proof digital counter. Both gages are encased to help with storage.