This page provides all possible meanings and translations of the word 1-2-3 block
WiktionaryRate this definition:(0.00 / 0 votes)
A tool used in machining fields, especially milling, to aid in setup. It is a block of steel that is precisely squared and parallel whose sides are 1, 2, and 3 inches long, respectively. Similar, larger blocks are called 2-4-6 blocks.
Find a translation for the 1-2-3 block definition in other languages: