Drill America DWT54455 1/4-20 UNC High Speed Steel Bottoming Tap, (Pack of 1)

Great product, fair price love it.

Needed a bottoming tap for a hole that needed to be fairly shallow. After running the regular tap in and out, I followed up with this one and all was perfect. Arrived quickly and works great. May not need again for a while but I know its there when I do.

I thought the purpose of a bottoming tap was to thread a blind hole to the bottom. How is that possible when the tap has a point that extends beyond the threads 3/16 of an inch? I have to grind the tips off to make them a true bottoming tap.