boring bar


noun
  1. Metalworking. a bar holding a tool for boring a cylinder or the like.

Origin of boring bar

1
First recorded in 1835–45

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use boring bar in a sentence

  • The boring bar is counterbalanced by a weight within the frame.

  • At the same time, the bore is finished by a cutter in boring-bar D (Fig. 4).

    Turning and Boring | Franklin D. Jones
  • This head is also driven by a key which engages a keyway in the boring-bar.

    Turning and Boring | Franklin D. Jones
  • Next, the boring-bar m1 is brought into position, the drill support being swung back out of the way.

    Turning and Boring | Franklin D. Jones
  • In the first operation, boring-bar m is brought in line with the spindle and is entered in bushing r in the chuck.

    Turning and Boring | Franklin D. Jones