The JessEm Large Metric Tool Setting Gauge is made of 14 gauge stainless steel. The internal parts are comprised with additional stainless steel components, all machined in-house on our Swiss Lathes.Finally, the tightening wheel is made of machined brass and the outer washers allow for ultra smooth adjustments.The Tool Setting Gauge can be used both vertically or horizontally, ensuring you get the perfect height or depth on any project.This tool makes adjustments quick and easy, simply by loosening the brass knob and setting the gauge height. This can be done to set the height of your table saw blade, router bit, set the depth on your drill press or even the fences on your various power tools.This gauge is equipped with micro-detents, allowing adjustments down to 1/16 of an inch. With the smooth adjustment knob and easy-to-read laser etchings, this tool guarantees repeatable accuracy.Large gauge has a max travel of just under 3-3/8 inches.