Logo for Judge Tool and Gage

G1-20 - Concentricity Gage - 3/8" - 2" Capacity

Manufacturer: Universal Punch
Item Number: G1-20
Call for Pricing

G1-20 Concentricity Gage 

Universal’s patented Concentricity Gaging Systems offer less than 2 microns accuracy that has proven results in a variety of industrial applications. 

How to Order:

1.  Selection of Standard or Precision accuracy traceable to (N.I.S.T.):

  • Standard Concentricity Gage Model = 4µm (.00016”)
  • Precision Gold Gages are guaranteed better than = 2µm (.00008”)

2.  Selection of main rollers:

3.  Select an indicator(s) and/or other accessories.

NOTE: Indicators are not included 

These are made to order, allow 4-6 weeks for delivery

Concentricity Gage Standard Features:

  • Adjustable multi-position top arm yoke assembly offers a variety of clamping pressures and positions to accomodate a range of part diameter sizes.
  • All Standard Indicator Carrers have fine adjustment screws that provide accurate indicator probe positioning, zeroing and provide smooth indicator movement to increase measuring performance and accuracy.
  • All gages comes standard with a manual Drive Timing Belt Pulleys System that provides a constant smooth part rotation when inspecting.
  • All carriers offer a variety of positions that move along the Z-axis of the carrier rod assembly. The carrier tilts 90 degrees to facilitate easy loading and unloading of parts.


  • Diameter Capacity: 3/8" to 2" (3mm to 25mm)
  • Length Capacity: = 6" (102mm)
  • Standard Accuracy: = 4µm (.00016”)
  • Precision Accuracy: = 2µm (.00008”)
  • Gage Length: 10.5" (267mm)
  • Gage Width: 4.5" (114mm)
  • Shipping Weight: 4.9 lbs. (2.2 kg

Concentricity Gage Catalog