Johari Dial Gauge 20mm (Eco.)

Johari Dial Gauge 20mm (Eco.)

Gemax Dial Gauge 20mm - Germany

Gemax Dial Gauge 20mm - Germany

Gemax Dial Gauge 10mm - Germany

This is a small pocket-size dial Gauge made specifically to measure the exact size of small gemstones or diamonds accurately. The maximum size Capacity is 10mm

Availability: In stock

Gemax Dial Gauge 10mm - Germany is an absolute pieace for use at ease for the most exacting specification. It has an absolute flat contact points. 

The instrument can be used by laying it down flat on the table and is thus best suited to get most accurate reading of small-sized diamonds & gemstones.

  • It is made in Germany, Accurate to 0.1mm with a maximum capacity of 10mm
  • It is well made metal housing and durable. Able to last long for years
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Specifications : Gemax Dial Gauge 10mm - Germany

  • Reading: 0.1mm
  • Measuring Range: 0 - 10mm
  • Range per Revolution: 10mm
  • Depth of Jaw: 15mm
  • Contact points: 10 mm Ø flat to the surface
Dimension and weight
Length Width Height weight (Grams)
Product 8 4 1.5 51.45
Package 10 5.5 1.5 56.65
  • This Product comes with a Warranty

Calibration :

  • Not Required

Precautions :

  • Keep the tester dry. Precipitation and all types of liquids or moisture can contain minerals that will corrode electronic circuits. If your tester gets wet, remove the battery, and allow the tester to dry completely before replacing it.


  • Do not use, store or expose the gauge in dusty and dirty areas. Its moving parts can get damaged.


  • Do not use, store or expose the gauge in hot areas. High temperatures warp or melt certain plastics.


  • Do not use, store or expose the gauge in cold areas. When the gauge returns to its normal temperature, moisture can form inside the gauge.


  • Do not attempt to open the gauge other than as instructed in this handbook.


  • Do not drop, knock, or shake the gauge. Rough handling might break the fine mechanics.


  • Do not use harsh chemicals, cleaning solvents, or strong detergents to clean the gauge.


  • Do not paint the gauge. Paint can clog the moving parts and prevent proper operation.
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