The 121-27640 is a 1 3/16-40 high speed steel bottom hand tap for forming or finishing internal threads in prepared holes.
It is typically used for general hand-tapping applications where internal threads need to be extended or finished toward the bottom of a blind hole.
- Model: 121-27640
- Size: 1 3/16-40
- Type: Bottom hand tap
- Material: High speed steel
