twist drill


noun Machinery.

a drill with one or more deep helical grooves in the body.

Origin of twist drill

First recorded in 1870–75

Example sentences from the Web for twist drill

  • They are not as much in use as formerly, the twist-drill taking their place for many purposes.

    Woodworking for Beginners |Charles Gardner Wheeler
  • For other forms of boring implements, see Awls and Twist-drill.

    Woodworking for Beginners |Charles Gardner Wheeler

British Dictionary definitions for twist drill

twist drill

noun

a drill bit having two helical grooves running from the point along the shank to clear swarf and cuttings