Looking for 0-12" depth mic

[Gunner Asch]

Checked Ebay..none found

Anyone have a decent one for sale?


--
"You guess the truth hurts?

Really?

"Hurt" aint the word.

For Liberals, the truth is like salt to a slug.
Sunlight to a vampire.
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Bush to a Liberal

The truth doesn't just hurt. It's painful, like a red hot poker shoved
up their ass. Like sliding down a hundred foot razor blade using their
dick as a brake.

They HATE the truth."

[Paul Drahn]

Depends on what you are willing to pay!

Paul

[Gunner Asch]

A fair price. Its for a customer/friend, not for me.

Gunner

[DoN. Nichols]

On 2013-05-20, Gunner Asch <gunne...@gmail.com> wrote:
> Checked Ebay..none found
>
> Anyone have a decent one for sale?

How accurate do you need it to be? The usual design of
replaceable rods in a micrometer thimble in a T-base usually can't do any
better than 0.001" -- there is no rigid mount for it. So, for most
purposes, a digital or vernier caliper with the depth rod is quite
adequate. (Of course, the 12" ones are not inexpensive anyway. though I
lucked into a Mitutoyo 12" digital caliper for about $100.00 -- still
sealed in the plastic wrap inside the wooden case. This was at least
twenty years ago or so. :-)

Good luck,
DoN.

--
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[Gunner Asch]

On 20 May 2013 03:20:35 GMT, "DoN. Nichols" <BPdnic...@d-and-d.com>
wrote:

>On 2013-05-20, Gunner Asch <gunne...@gmail.com> wrote:
>> Checked Ebay..none found
>>
>> Anyone have a decent one for sale?
>
> How accurate do you need it to be? The usual design of
>replaceable rods in a micrometer thimble in a T-base usually can't do any
>better than 0.001" -- there is no rigid mount for it. So, for most
>purposes, a digital or vernier caliper with the depth rod is quite
>adequate. (Of course, the 12" ones are not inexpensive anyway. though I
>lucked into a Mitutoyo 12" digital caliper for about $100.00 -- still
>sealed in the plastic wrap inside the wooden case. This was at least
>twenty years ago or so. :-)
>
> Good luck,
> DoN.

Thats the type. I gave him some SS rod of the proper diameter to
make up his own rods and even told him Id mic em for him to
length..but he wants a factory made set.

Gunner

[F. George McDuffee]

On Sun, 19 May 2013 18:23:28 -0700, Gunner Asch
<gunne...@gmail.com> wrote:

>A fair price. Its for a customer/friend, not for me.

Your friend may have almost everything he needs, depending
what he is going to use it for. If he has a reasonable drop
indicator, and some way to calibrate , he can use a t-base
and an extension rod, both of which are commercially
available or can be home made. if he doesn't have anyway to
calibrate, what difference does it make? Use a yard stick.

If what ever he is measuring is wide, a home made wide
t-base could be better.

some examples.

http://www.mscdirect.com/browse/Measuring-Inspecting/Dimensional-Measuring-Tools/Drop-Test-Indicators-Holders-Accessories/Drop-Indicator-Backs-Contact-Points-Accessories/Drop-Indicator-Contact-Point-Extensions?navid=12107842

http://www.mscdirect.com/browse/Measuring-Inspecting/Dimensional-Measuring-Tools/Depth-Gages/Depth-Gage-Accessories?navid=12107701

If you decide to make your own extensions [3/16 drill rod
IIRC] the 4X48 thread is a right b***h to work with. One
way around this is to drill and tap female on both ends and
then locktite a long 4X48 set screw for the male end rather
than attempting to turn the microscopic [for me] tit to
thread. Also eliminates need for 4X48 die.

4X48 taps
http://www.wholesalepowertools.com/tru-cut-galaxy-4-x-48-nf-carbon-bottom-tap-tpcb4x48?gclid=CL2P9p6CpLcCFSEV7AodrxEAOg
http://www.amazon.com/s/?ie=UTF8&keywords=4-48+tap&tag=googhydr-20&index=aps&hvadid=4577737405&hvpos=1o1&hvexid=&hvnetw=g&hvrand=136229742203295217&hvpone=&hvptwo=&hvqmt=b&hvdev=c&ref=pd_sl_6w6566qp5h_b

long 4X48 set screws
http://www.mscdirect.com/browse/?navid=12102292+4288239638



let the group know what you find.



--
Unka' George

"Gold is the money of kings,
silver is the money of gentlemen,
barter is the money of peasants,
but debt is the money of slaves"

-Norm Franz, "Money and Wealth in the New Millenium"

[Pete C.]

"DoN. Nichols" wrote:
>
> On 2013-05-20, Gunner Asch <gunne...@gmail.com> wrote:
> > Checked Ebay..none found
> >
> > Anyone have a decent one for sale?
>
> How accurate do you need it to be? The usual design of
> replaceable rods in a micrometer thimble in a T-base usually can't do any
> better than 0.001" -- there is no rigid mount for it. So, for most
> purposes, a digital or vernier caliper with the depth rod is quite
> adequate. (Of course, the 12" ones are not inexpensive anyway. though I
> lucked into a Mitutoyo 12" digital caliper for about $100.00 -- still
> sealed in the plastic wrap inside the wooden case. This was at least
> twenty years ago or so. :-)

$50 will get you a perfectly serviceable 12" digital caliper:

http://www.harborfreight.com/12-inch-digital-caliper-47261.html

Perhaps not suitable for aerospace work, but it's been spot on with
every check of a gauge block I've tried.

[PrecisionmachinisT]

"Pete C." <aux3....@snet.net> wrote in message
news:519a0e49$0$34411$862e...@ngroups.net...

>
> $50 will get you a perfectly serviceable 12" digital caliper:
>
> http://www.harborfreight.com/12-inch-digital-caliper-47261.html
>
> Perhaps not suitable for aerospace work, but it's been spot on with
> every check of a gauge block I've tried.

Thanks I always wondered how gage blocks are checked....

[Pete C.]

Har, har. You know perfectly well the gauge blocks are the standard the
calipers were checked against. For every gauge block I measured the size
the calipers reported matched the spec of the gauge block exactly, which
to me means that the calipers are plenty accurate for home shop use. And
yes, I did the measurements at the proper ambient temperature with the
gauge blocks normalized and minimizing handling of the blocks even
though calipers don't go to that level of precision anyway.

[PrecisionmachinisT]

"Pete C." <aux3....@snet.net> wrote in message news:519a4ab6$0$9366$862e...@ngroups.net...

>
> PrecisionmachinisT wrote:
>>
>> "Pete C." <aux3....@snet.net> wrote in message
>> news:519a0e49$0$34411$862e...@ngroups.net...
>> >
>> > $50 will get you a perfectly serviceable 12" digital caliper:
>> >
>> > http://www.harborfreight.com/12-inch-digital-caliper-47261.html
>> >
>> > Perhaps not suitable for aerospace work, but it's been spot on with
>> > every check of a gauge block I've tried.
>>
>> Thanks I always wondered how gage blocks are checked....
>
> Har, har. You know perfectly well the gauge blocks are the standard the

Sorry I just couldn't resist....

[Bruce L. Bergman (munged human readable)]

On Mon, 20 May 2013 06:51:35 -0500, "Pete C." <aux3....@snet.net>
wrote:

Now if it only had a notch on the internal measurement jaws on top,
that darn wear ridge on the drums always gets in the way.

I need 13" or 333mm for the Truck. 330.2mm new, 332.5mm discard.
Which doesn't seem to be a whole lot of meat, but that's Planned
Obsolescence for you - If you get to turn them once, you're lucky.

Very-Near Calipers would be fine, all you need to know is whether to
even bother hauling them in to be turned, or just order new ones and
chuck the dead ones straight into the Iron Garden.

These get turned into Light Stand Bases when they go.

--<< Bruce >>--

[Stanley Schaefer]

On May 19, 6:31 pm, Gunner Asch <gunnera...@gmail.com> wrote:
> Checked Ebay..none found
>
> Anyone have a decent one for sale?
>

Have never seen such cataloged, usually there's a set of standard
length rods sold, with or without a 1" depth mike, to cover that
distance by inches. Or you could just get a long digital caliper with
the depth gauge on it and call it good. If you have a really big hole
to bridge, they also sell a depth gauge adapter for the caliper to
bridge holes. I've never seen a classic-style mike with more than
about 1 1/2" travel anyway and that had some specialty anvil and
spindle. I've got a Mitutoyo solar-powered digital caliper that
covers that distance, so I know those are made.

Stan

[Stanley Schaefer]

On May 20, 1:08 pm, "Bruce L. Bergman (munged human readable)"
<bruceNOSPAMberg...@gmail.INVALID> wrote:
> On Mon, 20 May 2013 06:51:35 -0500, "Pete C." <aux3.DO...@snet.net>
> wrote:
>
>
>
>
>
>
>
> >"DoN. Nichols" wrote:

> --<< Bruce >>--- Hide quoted text -
>
> - Show quoted text -

I've got a set of digital brake calipers I got from HF, IIRC, was on
sale for cheap. It's got various rods that attach to one jaw to
extend the range. Alternative is the gadget I saw one guy using on a
brake lathe at a machine shop, was just a vernier caliper made of
stamped steel and with long jaws for internal measuring. I'm pretty
sure the online tool suppliers had those for like $20-25. Which is
about what I've paid for new drums. I don't bother having them
turned anymore, they're so thin they're usually too badly warped or
grooved to clean up. Go directly to new, do not pass Go. Same with
rotors. Local shops nick you anywhere from $20-50 for drum and rotor
turning, depending on what it is. Not worth it unless it's a
collector's vehicle they don't have parts for.

Stan

[Gunner Asch]

<http://www.moderntoolsupply.com/mitutoyo-129-150-vernier-depth-gauge-0-12-inch-range/?utm_source=googlepepla&utm_medium=adwords&id=47550100641&utm_content=pla&gclid=COGV_pSIqLcCFUlxQgodjggAWA>

Oh they are made....they make em up to about 40" in fact.

<http://www.grainger.com/Grainger/STARRETT-Electronic-Depth-Gage-5UAG6?gclid=COPY996IqLcCFYp_QgodbHsA8g&cm_mmc=PPC:GooglePLA-_-Hand%20Tools-_-Measuring%20and%20Layout%20Tools-_-5UAG6&ci_src=17588969&ci_sku=5UAG6&ef_id=UZvdMgAAAVkInTo7:20130521204642:s>

But buying the rods by themselves...Ill definately check into that!!

Thanks!

[StephenB]

Have you considered Caliper tips?
I have never used them, but suspect that the tips could be mounted such
that they are pointing out.

Such as:

http://www.mcmaster.com Part #20095A31

Caliper Tip Assortment

Attach these tips to your 4", 6", or 8" electronic, dial, or vernier
caliper for the added versatility of measuring slots, inside pockets,
shoulders, and holes. All are made of stainless steel. Assortment
contains two tip bodies, four pairs of tips (flat, conical, stem, and
ball end), set screws, hex key wrench, instructions, and case.