Metallics 832CTBSS Carbon Steel Tap Bottoming Type 8-32 (1pc)

A bottoming tap has almost no lead chamfer, so it threads nearly to the bottom of a blind hole. That geometry does not start easily in a bare hole, so the normal sequence is to start the hole with a taper (or plug) tap and finish with the bottoming tap. The 832CTBSS is the bottoming style in 8-32, so order it when you need full threads at the base of a closed hole rather than as a standalone starter tap.

Carbon steel. That suits hand tapping and thread chasing in mild steel boxes, enclosures and aluminum, and it is why it is sold as a job box item rather than a machine tap. For powered tapping or harder material, a high speed steel tap holds its edge longer.

Yes, chasing damaged or paint-filled 8-32 holes is exactly the kind of work this tap is bought for, and the bottoming form lets you carry threads to the base of a shallow blind hole where a taper tap would leave the last turns unthreaded. Run it by hand in a tap wrench; carbon steel taps snap under side load in a drill.

One tap, supplied in a pouch. If you are stocking a truck or a maintenance crib and want 8-32 covered on more than one van, order a quantity to match, since each pack is a single piece.