How To Use 1-2-3 Blocks

Watch this video to learn how to use 1-2-3 blocks and utilize these versatile tools for a variety of set-up and measuring applications. To view more application and product videos, including hundreds of exclusive video demonstrations, subscribe to our channel!




WHAT ARE 1-2-3 BLOCKS?

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



WHAT CAN YOU USE 1-2-3 BLOCKS FOR?

Repeating Set-Up Applications: 1-2-3 blocks can be clamped to a machine table and used to create a repeating set-up for machining identical parts.
Use As Parallels: 1-2-3 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 1-2-3 blocks are made to tight tolerances, they can be used to verify the accuracy of your measuring tools
Measuring Applications: 1-2-3 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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