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center bit

American  

noun

Carpentry.
  1. a bit having a sharp, projecting point for fixing it at the center of the hole to be drilled.


Etymology

Origin of center bit

First recorded in 1785–95

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The vegetable matter is peeled, plucked and trimmed into a messy heap that is larger than the center bit we manage to save.

From New York Times

Implements of house-breaking, such as a crow, a center bit, false keys, &c.

From Project Gutenberg