David P Best: Tool Height Gauge - Base, Reference and Swing-away Top
David P Best: This is the completed unit
David P Best: The top swings away and can be used as no-go height test
David P Best: View of swing-away top from above
David P Best: This is the bottom of the base unit
David P Best: Employed in conjunction with a bar across the carriage
David P Best: This is how it's used - once calibrated
David P Best: Shown in use setting parting tool height
David P Best: 3/4" end mill with zero TIR in lathe chuck for reference
David P Best: Adjust the height of the gauge to read zero
David P Best: Video - showing the calibration of the tool height gauge