1-2-3 blocks

A form of 1-2-3 block — 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. May contain arranged holes. Similar, larger blocks are called 2-4-6 blocks.

Meanings

noun
  1. pluralplural of 1-2-3 block
Cite this entry
APA

1-2-3 blocks. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/1-2-3%20blocks

MLA

“1-2-3 blocks.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/1-2-3%20blocks. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “1-2-3 blocks,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/1-2-3%20blocks.

Source: 1-2-3 blocks on Wiktionary, CC BY-SA 4.0.