centrebit
nounEtymology From centre + bit.
1
An instrument turning on a centre, for boring holes.
- Here's your crowbar And your centre-bit Your life-preserver— You may want to hit!1879, W[illiam] S[chwenck] Gilbert, Arthur Sullivan, composer, “With Cat-Like Tread”, in The Pirates of Penzance […], Philadelphia: J.M. Stoddart & Co., published 1880, →OCLC, page 34: