Digital Calipers Cheap

[RobertD]

Found another deal on Amazon... $10 Bucks...



After buying two calipers from harbor freight over the last few years for more than this (15-20?), I'm going to give these a shot. Both of my HF ones crapped out, and at $10 bucks, I'm in for these.



Maybe better, but can't be worse! Either way, I need a new set.



https://www.amazon.com/gp/product/B...di-20&linkId=c30b304e405e249cc79b8efc3a144580

 

[Kansaskart]

Stop it! Lol.

 

[Panhead5496]

Robert are you just trying to spend all our money

 

[anickode]

Let's play a game! Buy a super cheap set of flat feeler gauges and measure them with the super cheap calipers.

Then guess which one is wrong!

 

[bob58o]

Let's play a game! Buy a super cheap set of flat feeler gauges and measure them with the super cheap calipers.

Then guess which one is wrong!

What if the calipers say the same as the feeler gauges?
I'm going to see how close mine are.

$5 feeler gauges and $15 HF digital calipers.

0.035" ... 0.035"
0.116" ... 0.116"
0.060" ... 0.060"
0.021" ... 0.021"
0.043" ... 0.045"
0.041" ... 0.040"
0.016" ... 0.017"
0.008" ... 0.009"
0.004" ... 0.005"

Accuracy is good enough for me, let's look at precision.

0.043" ... 0.044"
0.043" ... 0.044"
0.043" ... 0.044"
0.043" ... 0.045"
0.043" ... 0.045"
0.043" ... 0.043"
0.043" ... 0.045"
0.043" ... 0.045"
0.043" ... 0.043"
0.043" ... 0.043"

Variance (σ2): 6.9000000000076E-7
Standard deviation (σ): 0.00083066238629226
Quartile deviation: 0.001
Mean absolute deviation (MAD): 0.00072


I have a different guess as to which one is wrong. LOL
https://www.youtube.com/watch?v=KEsKIM9MZnE

 

[anickode]

What if the calipers say the same as the feeler gauges?
I'm going to see how close mine are.

$5 feeler gauges and $15 HF digital calipers.

0.035" ... 0.035"
0.116" ... 0.116"
0.060" ... 0.060"
0.021" ... 0.021"
0.043" ... 0.045"
0.041" ... 0.040"
0.016" ... 0.017"
0.008" ... 0.009"
0.004" ... 0.005"

Accuracy is good enough for me, let's look at precision.

0.043" ... 0.044"
0.043" ... 0.044"
0.043" ... 0.044"
0.043" ... 0.045"
0.043" ... 0.045"
0.043" ... 0.043"
0.043" ... 0.045"
0.043" ... 0.045"
0.043" ... 0.043"
0.043" ... 0.043"

Variance (σ2): 6.9000000000076E-7
Standard deviation (σ): 0.00083066238629226
Quartile deviation: 0.001
Mean absolute deviation (MAD): 0.00072


I have a different guess as to which one is wrong. LOL
https://www.youtube.com/watch?v=KEsKIM9MZnE

Not bad at all! Can't really expect relaible accuracy down to the thousandth or less from a set of calipers anyway. That's what a micrometer is for.

Definitely deserves GAB status.

 

[WrenchnIsWhatIdo]

I grabbed thank you OP....W
.

 

[Joe-405]

My local tractor supply had these on sale for $5. I’ve had the ones from harbor freight and I honestly think this one is better ! Just doesn’t have the manual readout numbers on it.

 

[65ShelbyClone]

I got these for free. Seriously, they were just giving them away:

They measure in 0.00078" increments. Accuracy varies with weather.