Watch this video to learn how to use 123 blocks and utilize these versatile tools for a variety of setup and measuring applications. To view more application and product videos, including hundreds of exclusive video demonstrations, subscribe to our channel!




WHAT ARE 123 BLOCKS?

123 blocks are a versatile tool most commonly used for setup and inspection applications.
123 blocks measure 1" thick × 2" wide × 3" long and are usually made of durable, hardened and ground steel.
123 blocks are made to tight tolerances that allow them to be used as both a gage and a work support.
123 blocks often feature holes in each face, sometimes threaded, that allow machinists to use the blocks to form elaborate setup configurations as needed.



WHAT CAN YOU USE 123 BLOCKS FOR?

Repeating SetUp Applications: 123 blocks can be clamped to a machine table and used to create a repeating setup for machining identical parts.
Use As Parallels: 123 blocks can be placed under a workpiece that is clamped down. A machinist can utilize the holes within each block to drill or tap into a workpiece without damaging the machine table.
Checking Your Measuring Tools: Since 123 blocks are made to tight tolerances, they can be used to verify the accuracy of your measuring tools
Measuring Applications: 123 blocks can be held against the workpiece you are measuring to create a protruding edge or face that allows you to more easily measure with a caliper.
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