Gauge & Angle Block Sets

A gauge block set is a system for measuring length to a high degree of accuracy. This is achieved by stacking multiple blocks together. Each gauge block is ground to a precise thickness, and sets contain a range of standard sizes.
To combine gauge blocks and create a broader variety of lengths, you slide two blocks against each another. This process is called wringing and it makes the ultra-flat surfaces of the gauge blocks grip together.

What are gauge block sets used for?
Gauge block sets can be used to create a broad range of precise measurements. In manufacturing environments or machine shops they're used to calibrate the accuracy of devices in other measuring sets, such as calipers. They're the recognised standard measures of length in industry.

Types of gauge block set
The main way gauge block sets vary is in the materials they're made from. This depends on what your priorities are as a user.

  • Steel is hardened and tempered to reduce the rate of wear. It's suitable for standard usage.
  • Chromium carbide and tungsten carbide ceramic are more durable and longer-lasting than steel. They're often used for calibration.
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Part Details Brand Stock Imperial or Metric Material Number of Pieces
RS PRO Gauge & Angle Block Set Imperial, 81 piece RS Pro 3 Imperial - 81
81 piece grade 1 imperial gauge block se RS Pro 2 - - 81
RS PRO Gauge & Angle Block Set Steel Both, 1 piece RS Pro 20 Both Steel 1
RS PRO Gauge Block Set Steel Metric, 47 piece RS Pro 14 Metric Steel 47
RS PRO Gauge & Angle Block Set Steel Imperial, 10 piece RS Pro 10 Imperial Steel 10
RS PRO Gauge Block Set Alloy Steel Metric, 11 piece RS Pro 9 Metric Alloy Steel 11
RS PRO Gauge Block Set Steel Metric, 87 piece RS Pro 6 Metric Steel 87
RS PRO Precision Measuring Block set Steel Imperial, 2 piece RS Pro 6 Imperial Steel 2
Mitutoyo Gauge Block Set Steel Imperial, 81 piece Mitutoyo 2 Imperial Steel 81
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