Tap Question

[W.C. Turner]

Hi everyone,

On a Tap labeled: 1X8 NS HS GH5, Can anybody tell me what the NS HS GH5 MEANS???

Thanks,

W.C.

[Bruce Page]

WC,

NS = American National Thread – Special
HS = High Speed Steel
GH5 = G means that it is a ground tap. H5 is the thread class, e.g. Basic pitch diameter plus .002” to Basic pitch diameter plus .0025”

[W.C. Turner]

Hi Bruce,

How are you? Haven't heard from you in a while.

I wasn't sure where to look that info up, & figured I'd get an answer faster here.

Where is a good website to find this type of info??

Thanks for the reply!!

W.C.

[Bruce Page]

WC, I've been doing good. You?

Try to find a copy of the “Machinery Handbook” at a used book store. Often called the machinists bible, it has more information than you’ll ever want to know. Amazon has it for $71.06