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Starrett 640M Series Dial Depth Gauges, Indicator Type, Metric, 0-10mm Range

Available in multiple versions

Price: $458.00 - $549.60
Product Specifications
Measurement System Metric
Brand Name Starrett
Manufacturer Series Number 640M Series Dial Depth Gauge
Style Dial

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The Amazon Standard Item Number (ASIN) uniquely identifies the item in the Amazon catalog.
Range Resolution Measurement Accuracy Part Number Price
B000VDZBKA 0-10mm 0.01mm 1 GRAD for first 2 ½ REVS 640MJZ
+ $3.59 Shipping
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B000VDZBKU 0-10mm 0.01mm 1 GRAD for first 2 ½ REVS 640MRJZ
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Product features

  • Measurement range for each model in series of 0 to 10mm, and resolution of 0.01mm
  • Dial gauge provides precise and easily readable measurements
  • 640MJZ model has one button operation for accurate measurements
  • 640MRJZ model has no button and can be operated with one hand for ease of use
  • Bases are hardened and ground for durability and accuracy

Product description

The Starrett 640M Series Dial Depth Gauges, Indicator Type, Metric, have a measurement range of 0 to 10mm, a resolution (or smallest graduation interval) of 0.01mm, with + or - 1 graduation (0.01mm) for the first 2.5 revolutions of accuracy. The dial face has distinct, easy to read figures. The 640MJZ model has a simple one-button design to take accurate measurements. The 640MRJZ model has reverse movement (no button) and can be operated with one hand for ease of use. The gauges in this series have hardened and ground bases that are 64mm long and are used as a reference for measurements. These gauges come in a fitted case. Electronic indicators 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.