Can you make bottoming taps?

[Madeit]

I was thinking of trying to make a bottoming tap from a regular tap by removing the pointed bottom section. Would that work?

Just wanted to see if anyone ever tried it first.

Yes can be done, Most important to do the following:

1. When grinding away the tapered part of the tap you MUST KEEP THE TAP COOL so as not to ruin the temper of the tap
2. When tap has been ground down into a bottom tap you will need to provide a taper at the end of the tap over at least one thread (no more than 2 threads) otherwise you will really risk tap breakage, especially in hard material .
Cheers
Madeit