To avoid these ads, REGISTER NOW!

carrying digital calipers makes holes in your pockets

CodigoRojo

Member
Joined
Jan 29, 2013
Messages
18
So I got tired of making holes in my pockets (and poking my legs and buttocks) and decided to go at my el cheapo Harbor Fright caliper with a grinder. First I sawed off the inside measuring points altogether on the band saw. Then I ground the OD points way down and rounded them off. Once satisfied that they still worked just fine, I took the grinder to my tiny 4 inch Mitutoyos. I just softened the sharp things on those. Now much more pocket friendly.
hfcal.jpg
mit.jpg
 
To avoid these ads, REGISTER NOW!

mike93lx

ALLIANCE MEMBER
Joined
Dec 9, 2013
Messages
37,974
Location
Richmond, VA
Modifying a tool to do a specific job is something we have all done. 👍

What do you do that requires keeping calipers in your pocket?
 

LS1-IROC

Well-known member
Joined
Aug 6, 2011
Messages
178
Location
Grand Rapids MI
Not the craziest thing I've seen done to a pair of calipers. I used to work in the tool room of a large aerospace manufacturer. We only bought the carbide jaw Mitutoyo's. Once the jaws would get chipped, we would regrind the tips on a diamond wheel by hand. A lot of the guys preferred those as they weren't so sharp and didn't poke holes in pockets and fingers anymore. Those were like $600 calipers back in the day...lol
 

OccupantRJ

Well-known member
Joined
May 15, 2009
Messages
11,279
Location
Eastern North Carolina
Not the craziest thing I've seen done to a pair of calipers. I used to work in the tool room of a large aerospace manufacturer. We only bought the carbide jaw Mitutoyo's. Once the jaws would get chipped, we would regrind the tips on a diamond wheel by hand. A lot of the guys preferred those as they weren't so sharp and didn't poke holes in pockets and fingers anymore. Those were like $600 calipers back in the day...lol
I did the same to a Mit. Caliper I had at one time after the tip chipped. Company got me a new one on their dime so those got nubbed.
 

GeoBruin

Well-known member
Joined
May 5, 2018
Messages
3,754
Good idea, but besides measuring, my calipers tend to also function as a scribe and this would eliminate that function, so they will remain intact for now.
 

Nobody-named-Olli

Well-known member
Joined
Jan 9, 2025
Messages
1,655
Location
North Rhine-Westphalia; Germany
I guess demand for accuracy and a digital read out varies, but for my needs I have this for pocket carry to the “Hardware Barn”.

IMG_9495.jpeg


Again, don’t know about your workflow or what you do. Tools have always been altered to meet specific demands, so if that alteration works best for you, it‘s a great mod!

Kind regards,
Olli
 

Jgaz

Well-known member
Joined
Dec 16, 2016
Messages
1,714
Location
AZ
This^^^
I have carried these plastic calipers in my travel kit either for work or home for the last 25? years.
IMG_6063.jpeg

IIRC they were bought at the old ACO hardware chain in Mich. off of the $.10 table.

YMMV but if the OP needs/wants to modify his digital caliper for his purpose, more power to him
 
To avoid these ads, REGISTER NOW!

dscheidt

Well-known member
Joined
Apr 26, 2017
Messages
2,911
This^^^
I have carried these plastic calipers in my travel kit either for work or home for the last 25? years.
IMG_6063.jpeg

IIRC they were bought at the old ACO hardware chain in Mich. off of the $.10 table.

YMMV but if the OP needs/wants to modify his digital caliper for his purpose, more power to him
I have very similar plastic calipers, which used to live in my road kit. They're junk, but they're good enough for figuring out bolt sizing and such. They **** as scribes, though....
 

larry_g

Well-known member
Joined
Apr 28, 2007
Messages
16,900
Location
oregon
In my belief a tool is just raw material to make what you need. I have many tools that are modified to get a job done. These things are not antiques or historical relics.

lg
no neat sig line
 

GeoBruin

Well-known member
Joined
May 5, 2018
Messages
3,754

darkzero

Well-known member
Joined
Oct 20, 2011
Messages
3,334
Location
SoCal
How could I almost forget about this little gem:

”Messograf” - Made in Germany.

Enlight4781.jpeg

Enlight4782.jpeg


Ball point pen, calipers, tire/tread gauge & drilling/tapping table.

Keepsake from my collection.

Kind regards,
Olli
I have one of those sitting on my desk. I forgot about it until seeing your post. Obvious that I rarely never use it, even as a pen. Not sure where or when I got it, all I know is I've had it for a while.
 

darkzero

Well-known member
Joined
Oct 20, 2011
Messages
3,334
Location
SoCal
Doesn't solve your issue but here's my "pocket size" calipers. Not that I actually carry them in my pocket though.
20260128_201119.jpg

Of the 3 I only use the Mitu. These just live in my room. I use 6" calipers mostly.
20260128_201245.jpg
 

neophyte

Well-known member
Joined
Apr 23, 2012
Messages
9,812
Location
Pennsylvannia
There is dome Swiss manufacturer that makes plastic digital calipers that are fairly light in weight, and which should be less likely to poke holes in clothing.
Wiha sells the calipers in the USA under the Wiha brand, and may own the Swiss manufacturer, (I am not certain about this), but the same plastic calipers have also been sold under other brands over the years going back at least two or three decades.


  • Accurate Resolutions to 0.0005" 0.01mm
This is what Wiha currently claims, however I thin the calipers used to be listed as accurate to .003”, even if the resolution was higher.

From the instructions.
“Specification:
• Measuring range • Scale bar:
• Numerical interval: • Margins of error:
0 - 150 mm / 0 - 6" 10 mm / 1"
0.01 mm / 0.0005"
0.05 mm / 0.002" [0-150 mm] Maximaler Messdruck 2N [5]
0.05 mm / 0.002" [0-150 mm] Maximum measuring pressure 2N [5]
• 5-stelliges LCD-Anzeige mit 7.5 mm Ziffernhöhe • Automatische Abschaltung nach 5 min.
• Messarten: Für Außen-, Innen-, Stufen- und
Tiefenmessungen
• Nullstellung in jeder Position möglich für schnelle
Vergleichsmessungen
Inbetriebnahme/Bedienung:
1. Installieren Sie die mitgelieferte Batterie mit der positiven Seite nach oben, wie in Bild A und B dargestellt.
2. Durch Drücken der ON/OFF – Taste schalten Sie den Messschieber ein.
3. Nullen vor dem Messen: Schließen Sie die Messschnäbel mit gleichmäßigem Druck und betätigen Sie gleichzeitig die "ZERO" – Taste.
4. Falls das Display keine Änderung zeigt, wenn Sie die Messschnäbel bewegen, entnehmen Sie bitte die Batterie und setzen Sie diese nach 30 Sekunden wieder ein.
5. Die Batterie muss ersetzt werden, wenn die 5 Ziffern ca. 1 mal pro Sekunde gleichzeitig aufleuchten. Bitte benutzen Sie nur SR44- oder LR44-Batterien.
• 5-figure LCD display with 7.5 mm high digits
• Automatic switch-off after 5 mins.
• Measurement types: for external, internal, step and
depth measurements
• Zero setting possible in every position for rapid
comparison measurements”

There are also other versions, including dual and vernier options.


Admittedly, there are plenty of somewhat decent stainless steel digital calipers available nowadays for way less money than the plastic Swiss calipers now cost, and the inexpensive stainless calipers may even be more accurate due to a stiffer frame.
 

Attachments

  • IMG_6666.png
    IMG_6666.png
    607.5 KB · Views: 9
  • IMG_6667.png
    IMG_6667.png
    669.1 KB · Views: 5
  • IMG_6668.png
    IMG_6668.png
    536.2 KB · Views: 12

mike93lx

ALLIANCE MEMBER
Joined
Dec 9, 2013
Messages
37,974
Location
Richmond, VA
There is dome Swiss manufacturer that makes plastic digital calipers that are fairly light in weight, and which should be less likely to poke holes in clothing
Harbor freight has plastic calipers as well. I keep a set on my desk for measuring things that I don't want to risk scratching like watches and I've found them really nice to have when doing modeling for 3d printing. Yes they aren't smooth and the resolution is only a tenth of a MM, but I still use them a lot.
 

RoninB4

Well-known member
Joined
Jul 22, 2020
Messages
3,623
Location
Under My House
Harbor freight has plastic calipers as well. I keep a set on my desk for measuring things that I don't want to risk scratching like watches and I've found them really nice to have when doing modeling for 3d printing. Yes they aren't smooth and the resolution is only a tenth of a MM, but I still use them a lot.
-I have many measuring instruments, several lengths of calipers, and I own one of the plastic HF calipers too. I don't regard it as very accurate (+/- .010") but no caliper should be trusted below .003" for accuracy anyway. Works ok for fast check of fastener sizes or in a dirty environment without risking more expensive/delicate instruments. Also non-scratching as @mike93lx pointed out.

Accurate Resolutions to 0.0005" 0.01mm
-Accuracy and resolution are two different things. While Wiha may have electronics on a caliper capable of Detecting TO 0.01mm (resolution) I highly doubt accuracy of 0.01mm. That's just marketing BS for those that have no idea what .00039" (0.01mm) really is. That doesn't mean it's a bad purchase but if you're shopping for things based upon numbers then it's important to actually understand what those numbers are. The above quote regarding "Accurate Resolution" was not from @neophyte, the specs were taken directly from the Wiha website. I wasn't attempting to imply that neophyhte didn't know what he was talking about and I should have made that clear before posting.
 
Last edited:
OP
C

CodigoRojo

Member
Joined
Jan 29, 2013
Messages
18
How could I almost forget about this little gem:

”Messograf” - Made in Germany.

Enlight4781.jpeg

Enlight4782.jpeg


Ball point pen, calipers, tire/tread gauge & drilling/tapping table.

Keepsake from my collection.

Kind regards,
Olli
I'm subscribed to the reddit/mechanicalpencils and I have never seen the cleo messograf. Thanks Olli! I'm ordering one now.
 

Cruzan80

Well-known member
Joined
Jul 22, 2015
Messages
4,327
Location
Denver, CO
I feel like if the tips are a "standard" dimension, you could use the Messogrsf as an ID caliper as well, just by adding. But I don't see this mentioned anywhere.
 

Davefr

Well-known member
Joined
Jan 7, 2010
Messages
11,849
Location
OR
Now that It'll fit in a shirt pocket, get one of these:
1a5954_153eb4a1c4ca45199bfaed3fa886c4b4~mv2.jpg
 
To avoid these ads, REGISTER NOW!
Top Bottom