The 621-00172 is a 1-72 high speed steel taper tap for general-purpose hand tapping. Also known as a starter tap, its extended chamfer provides a less aggressive cutting action.
Taper taps are typically used for starting threads in through holes and in applications where a tap guide is necessary.
- Size: 1-72
- Type: Taper tap; starter tap
- Chamfer: 7 to 10 threads
- Material: High Speed Steel
- Applications: General-purpose tapping of ferrous and nonferrous materials
- Operation: Hand tapping