LCD digital Caliper $3.51 Free shipping from AliExpress



Author Topic: LCD digital Caliper $3.51 Free shipping from AliExpress  (Read 301 times))

Offline james828

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Offline soupyyy

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Re: LCD digital Caliper $3.51 Free shipping from AliExpress
« Reply #1 on: January 22, 2019, 10:28:57 AM »
Just be aware that the precision reading will only  be 1/10 of a mm and 1/100 of an inch.
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Offline DHunter

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Re: LCD digital Caliper $3.51 Free shipping from AliExpress
« Reply #2 on: January 22, 2019, 08:18:02 PM »
I've had a hard time trusting the digital ones since I saw one at work that had gotten so far off that the error was visible, like showing 1.0000" when it was actually at about an inch and an eighth, even though it was zeroed correctly, showing 0.0000 when closed.  I've been using a mechanical one.
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Offline Earl

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Re: LCD digital Caliper $3.51 Free shipping from AliExpress
« Reply #3 on: January 22, 2019, 10:48:36 PM »
I have a CEN-TECH 6 inch digital Caliper from Harbor Freight for $9.99 that works excellent.
Accuracy: .001"/0.02mm
  • Lexington, KY, USA
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Offline only1harry

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Re: LCD digital Caliper $3.51 Free shipping from AliExpress
« Reply #4 on: January 22, 2019, 11:18:45 PM »
I believe I have the same one from Harbor Freight too that goes down to 1/1000th of an inch, except I paid around $4.99 because they had a big sale and I had an additional coupon.  It came in a nice case and I 've had it for 8 years or so and it still works well.

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Offline DHunter

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Re: LCD digital Caliper $3.51 Free shipping from AliExpress
« Reply #5 on: January 23, 2019, 01:13:34 AM »
I have a CEN-TECH 6 inch digital Caliper from Harbor Freight for $9.99 that works excellent.
Accuracy: .001"/0.02mm

That's the precision, not the accuracy.  Because of my (admittedly one-time) bad experience with a digital caliper, I would recommend periodically checking against a known standard to make sure it agrees.
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Offline JMJ in NC

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Re: LCD digital Caliper $3.51 Free shipping from AliExpress
« Reply #6 on: January 26, 2019, 12:00:09 PM »
I have a CEN-TECH 6 inch digital Caliper from Harbor Freight for $9.99 that works excellent.
Accuracy: .001"/0.02mm

That's the precision, not the accuracy.  Because of my (admittedly one-time) bad experience with a digital caliper, I would recommend periodically checking against a known standard to make sure it agrees.

Agree. I have several $20 HF calipers, and any time I need to be sure of the measurement, I check the caliper in a .1000 gage pin. This is called single point calibration in engineering parlance.

JMJ
« Last Edit: January 26, 2019, 03:31:06 PM by JMJ in NC »
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Re: LCD digital Caliper $3.51 Free shipping from AliExpress
« Reply #7 on: January 26, 2019, 12:22:44 PM »
I knocked over an entire case of pin gauges once in the QC lab once.  :-[
Seem to remember it was a 250 piece set. My punishment was to mic each one and put it in its right hole.  ::)

I trust my personal digital calipers, they are Mitutoyo, close enough for Gov work... and cost a heck of a lot more that $4.

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