Forstner bit

短语

词形变化

Forstner bits 复数 Forstner bits

释义与例句

n.
  1. 1.

    A kind of drill bit that bores precise flat-bottomed holes in wood, in any orientation with respect to the grain.

词源

From Forstner (proper noun) + bit (noun). Named after American inventor, gunsmith and merchant Benjamin Forstner (1834–1897). First attested after 1886.

来源：wiktionary