The 421-08812 is a 1 3/8-12 C.S. hand tap, taper style, for forming internal threads. It is listed in the Carbon Steel Taper Taps (772CB) category.
Typically used for manually starting and forming internal threads in general tapping applications where a taper-style carbon steel hand tap is appropriate.
- Model: 421-08812
- Size: 1 3/8-12
- Material: Carbon steel (C.S.)
- Type: Hand tap, taper
