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Starrett 644 Series Dial Depth Gauges, Indicator Type, Inch, 0-3" Range

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ASIN B007OOLLC6

Specifications for this item
Manufacturer Series Number
644 Series Dial Depth Gauge
Style Name
Dial
UNSPSC Code
41112401
Brand Name
Starrett
System of Measurement
Inch

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Key Features

  • Measurement range for each model in series of 0 to 3", and resolution of 0.001"
  • Dial gauge provides precise and easily readable measurements
  • Includes three round-end contact points to cover the measuring range
  • Bases are hardened and ground for durability and accuracy
  • Choice of two models: one with a case and one without

Product Description

The Starrett 644 Series Dial Depth Gauges, Indicator Type, Inch, have a measurement range of 0 to 3", a resolution (or smallest graduation interval) of 0.001", with + or - 1 graduation (0.001") for the first 2.5 revolutions of accuracy. The dial face has distinct, easy to read figures. The gauges in this series are intended for longer distances and include three round-end contact points to cover the range. The base of these gauges is 2.5" long, and is hardened and ground for durability and accuracy. Model 644JZ includes a fitted case; model 644J is not sold with a case. Electronic indicators and flat-end contact points 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.

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