About the Tool Height Gauge
This steel gauge offers a simple way to ensure the tip of your cutting tool is set to the centerline height of the lathe. The lower lip is for tools in the standard tool post, while the upper lip is used with the riser tool post. Just set the gauge on the lathe table and position it in front of the tooltip to check the height. The tooltip should just touch the bottom of the lip. It is much quicker and easier than checking height against a center in the headstock or tailstock, as you don’t have to move the crosslide table or tool post to a different position to check tool height.
Always wear safety glasses when operating machine tools.