Moore and Wright 2-12″ inside mic handle thread

[jimmy bParticipant @jimmyb]

I’m looking for information…

I’ve managed to loose the handle from my Moore and Wright 2-12″ inside mic,(I say I lost, but it came back from a borrowing!).

Could some tell me what the thread is? Dia and tpi would do.

Thank you
Jim

[jimmy bParticipant @jimmyb]

[mechman48Participant @mechman48]

Imperial mics are usually 40 tpi. One rotation of the thimble gives a .025" linear movement, hence the barrel marked in .025" incremens.

George.

[Brian HParticipant @brianh50089]

Jim, I'm assuming that you mean the thread on the rod that is used to hold the mic in a bore whilst measuring it. If so, it is 6BA.

Brian

[Anonymous]

Err, OP said the handle, not the micrometer.

The thread on my M&W internal mic handle measures 0.127" OD, which points to 5BA, nominally 0.126" OD.

Andrew

[jimmy bParticipant @jimmyb]

Excellent!

I was loathed to start trying taps in the hole.

Thank you

Jim

[John MCParticipant @johnmc39344]

Just made a handle for my M&W 2-12 internal mic. 5BA.

John

[Brian HParticipant @brianh50089]

Sorry Jim, I made it 6BA by trying nuts on the thread! I'll give it a proper measure tomorroe and get back to you.

Brian

[jimmy bParticipant @jimmyb]

I’ve just checked and luckily I’ve got a good 5BA and 6BA. Thanks again

Jim

[jimmy bParticipant @jimmyb]

I missed the word die out…..

[Author]

Posts