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Meaning of 1-2-3 block | Babel Free

Noun CEFR B2

Definitions

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.

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
See all B2 English words →

See also

1-A 1-A-O 1-C 1-D 1-D RCM 1-G

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