Starrett 3751AZ-6/150 Electronic Height Gage Measurement range of 0 to 6" (150mm), and precise to 0.0005" (0.01mm) High-contrast LCD digital readout displays in inches or metric Fine adjustment thumb roll and lock to hold slide position Steel scriber can reference zero from bottom of the base to obtain full usable range Hardened, stainless steel bar for durability Easy-to-read LCD .32-Inch high characters Hardened, stainless steel bar for long life Depth attachment PT08680A available for measuring depth of holes, slots, and recesses Fine adjustment thumb roll for precision measurements Rounded nose scriber cuts clean, sharp lines with smoothness and less pressure