Slip/Gauge block gauge

Introduction

slip gauge block Mitutoyo

Slip Gauge is set standard size rectangular shape block. Slip gauges are available in standard sets in both metric and inch units. In metric units, sets of 31, 48, 56, and 103 pieces are available.

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slip gauge

For example, the set of 103 pieces consists of the following:

  1. One piece of 1.005 mm
  2. 49 pieces ranging from 1.01 to 1.49 mm in steps of 0.01 mm
  3. 49 pieces ranging from 0.5 to 24.5 mm in steps of 0.5 mm
  4. Four pieces ranging from 25 to 100 mm in steps of 25 mm

The cost of Slip Gauge is very high because of its Manufacturing deserve a high degree of accuracy and precision. Slip gauges should meet high standards of accuracy, flatness, parallelism, and surface quality.

In India, slip gauges are manufactured as per the guidelines recommended by the National Physical Laboratory (NPL).

Wringing is the phenomenon of adhesion of two flat and smooth surfaces when they are brought into close contact with each other.  Wringing is needed to avoid errors due to misalignment or gap between two slip.

Slip gauges are calibrated by direct comparison with calibration grade gauges using a comparator stand by the means of Electronic prob.

Slip gauges need to be calibrated at regular intervals since even a slightly worn out slip gauge can create havoc at the quality control stage, resulting in increased scrap losses. NPL and NABL have recommended schedules for the calibration of different grades of slip gauges.

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