unusual tap drive

[bernard towersParticipant @bernardtowers37738]

Anybody come across this type of tap drive? The ones ive seen seem to be UNF and UNC. The diameters on the drive spigot are in 64ths!!!

[Speedy Builder5Participant @speedybuilder5]

They could be useful if you could put long extenders on to them perhaps ?

[Speedy Builder5]

On Speedy Builder5 Said:

They could be useful if you could put long extenders on to them perhaps ?

You could be on the right lines.

They look similar to some styles of nut tap, used in a nut tapping machine for bulk nut production.

See, for example:

Nut Taps Type R

[bernard towersParticipant @bernardtowers37738]

I have done this so far as they are too good a quality to throw away. more of them may be available in the future!!!!

[Robert Atkinson 2Participant @robertatkinson2]

I think DC31k is spot on.

If production taps they will be high quality and hard wearing.

[OldironParticipant @oldiron]

I have several of those which came in an auction job lot and made a holder very similar to Bernard’s.

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