Using gauge blocks correctly
Parallel gauges are cuboid, high-precision ground blocks with very high length accuracy. They are used for calibrating and testing test equipment and measuring devices such as calipers or micrometers. Gauge blocks are also used for adjusting sine vices. Gauge blocks can be used to create dimensions from 1 mm.
Parallel gauge blocks are available in four different accuracy classes (0 to III). Accuracy class 0 stands for the highest accuracy. Gauge blocks from accuracy class II are generally used for testing gauges and setting measuring instruments.
Testing with parallel gauge blocks
Due to the high surface quality and the resulting adhesion force, any number of individual blocks can be joined together at the ends to form different lengths (also known as pushing or blasting).
When assembling the blocks, always start with the smallest dimension. For example, if you want to set a dial gauge to 29.78 mm, start with 1.08 mm. Then use the dimensions 1.7 mm and 7 mm. Finally, add the block with the dimension 20 mm.
Individual blocks are generally used for calibrating or testing measuring devices.
Possible areas of application
- Testing measuring devices (e.g. micrometers, calipers)
- Adjusting measuring devices (e.g. sinusoidal vices)
Tips & tricks
- Please note that damage or soiling of the gauge blocks can affect the length accuracy. Therefore, work with the gauge blocks as carefully as possible.
- Separate the blocks again after eight hours at the latest, as steel gauge blocks tend to cold weld.
- Ensure that you only work with clean gauge blocks to avoid incorrect settings.
- Lightly oil the blocks after use.
Tip
Our gauge blocks
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