Starrett Electronic Depth Gage with Clear, Easily-Read Numbers, Fine Adjustment Thumb Roll and Removable Hook - 0-6" Range, .0005" Resolution - 3753A-6/150

The Starrett 3753 Electronic Depth Gauge without Output, has a measurement range of 0 to 8" (0 to 200mm), and a resolution (or smallest graduation interval) of 0.0005" (0.01mm) with + or – 0.001" (0.03mm) of accuracy. The LCD screen displays in both inches and metric. The base is 2.75"(70mm) long, and the body and the slide are made of hardened stainless steel for durability. Control buttons offer Zero at any position, Hold at any position, and Limits functions. These gauges include one CR2032 lithium battery. Larger bases and additional batteries are sold separately. Depth gauges are typically used in manufacturing, machining, and mechanical engineering. Depth gauges are precision measuring instruments used to determine the depth of any shape that has a step, groove, or slot. These gauges often take the form of sliders that travel on a measuring beam or rods, are moved to position by hand, and then adjusted with a calibrated screw. The base of the gauge rests at the top of the shape whose recession is to be measured, while the beam or rods extend to the bottom of the recession to determine the measurement. Gauge position is read from a graduated scale, dial, counters, or an electronic display.The L.S. Starrett Company manufactures precision measuring tools, metrology and testing equipment, and saw blade products. The company, founded in 1880, is headquartered in Athol, MA.

• Heavy Duty - it comes with a hardened stainless steel body and slide for long life with a hardened base 3-15/16" (99mm) long, but optional base extensions of 7" and 12" (175 and 300mm) are available.
• Turns Off Automatically - It has a manual ON/OFF with a built in automatic OFF after 15 minutes of nonuse. This will conserve battery life and ensures the tool is ready to use. It has inch/millimeter conversion and zeroes at any position.
• Easy to Read - The clear, easily-read numbers are properly sized for the tool to ensure easy handling and better readability. Spacing between holes is 2-3/4"" (70mm) and the fine adjustment thumb roll is for taking precision measurements.
• Quick Adjusting Tool - The Micrometer Depth Gage locks to hold the slide in position and the removable hook has the screw permanently attached to prevent loss.
• Accurate Measurements - Starrett precision measuring tools exceed accuracy and performance requirements of national and international standards, providing excellent fine precision tools for industrial, professional and consumer markets worldwide.