Metallics 632CTB Carbon Steel Tap Bottoming Type 6-32 (5pcs)

The 632CTB is a bottoming type tap, meaning it has almost no lead chamfer so it can cut threads nearly to the base of a blind hole. That is what you want when a 6-32 screw has to thread deep into a hole that does not go all the way through, such as a tapped boss in a box or enclosure. For starting a thread from bare metal, a taper tap is easier to get aligned and cutting; a bottoming tap is normally used after the taper tap to finish the last few threads at the bottom.

Yes, that is a typical use. It is a carbon steel 6-32 tap, so it will chase or recut 6-32 threads in a steel box or enclosure boss. Carbon steel cuts mild steel, aluminum, and brass fine by hand; for hardened or stainless material, step up to a high speed steel tap instead.

Five 6-32 bottoming taps come in a pouch. No tap wrench, handle, or drill bit is included, so you supply the T-handle or tap wrench yourself. Buying the multi-pack suits service trucks since small taps snap easily on blind holes.

It will, but because it is a bottoming tap the lack of a tapered lead makes it harder to start square in a fresh hole. For new work, start the thread with a taper tap and switch to the 632CTB to carry the thread to the bottom of a blind hole. Drill the hole to the standard 6-32 tap drill size before tapping.