-40%
1 Perma Thread 1/2"-13 Roughing Tap 4 Flute 3 3/4" Long
$ 6.85
- Description
- Size Guide
Description
3 3/4" long.Roughing taps
are used in conjunction with either the finishing or bottoming
tap
. It has up to 8 tapered threads that give a gradual cutting action, preparing a
tapped
hole that is marginally undersize in diameter prior to the use of the Finishing or Bottoming
tap
.