Dial Caliper?

[Carl Edwards]

.3335. Guilty as charged.

I'd call it .3337

 

[Fast14riot]

I call a thousandth a thou, a ten thousandth a tenth, and one hundred thousandths ten millionths. My machines only resolve to the 10 millionths, so I don’t really worry about anything past that.
I can also speak metric, but I don’t mix the languages.

Mil is still commonly used when discussing film thickness (i.e. paints, gelcoat, etc) and rolled sheet goods (paper, vinyl, mylar, etc). It is equal to 0.001".

 

[Kracken McGraw]

https://www.brownells.com/gunsmith-...cal-calipers-with-data-output-prod123488.aspx
I like these for the simple reloading tasks. Thought this might help someone that doesn’t do the Amazon deal.
edit: I noticed on that link that I-guaging also has a $25 pair that has a good review, interesting.

 

[riflewoman]

Next thing we'll talking about slide rules.

I still have mine and I know how to use it too.

as for dial v digital v vernier…. Any “cross horn” caliper is, at best, a +/- .001 device. Just because the dial is between “tick” marks doesn’t mean that you can RESOLVE a half thousandths.

 

[Tokay444]

Next thing we'll talking about slide rules.

I have a watch with an aeronautical slide rule in the bezel, and the manual for the calculator is thicker than the manual for the watch itself, many times over.

 

[dgeesaman]

Calipers , whether dial or digital are not designed for four digit accuracy. that is what micrometers are for.

Except when they are doing it anyway. I have a couple of dial calipers that consistently hit the number within a half thou, which gives me that last digit to the half.

Personally I see no point attempting to interpolate any closer than that - and if that’s your point we agree.

But it takes a calibrated micrometer to prove when your dial calipers are performing better than .001 accuracy. So I agree that dial calipers alone do not give you anything of the 4th digit.

David

 

[dgeesaman]

Uh, no. If I say to an old machinist, "take it down 1 mil," he would know that I mean one thousandth.
Younger ones would look at me funny.
IIRC, the roots are based in the Latin "milli", as in 1/1000th - i.e. millimeter, millisecond, etc.

I worked with a guy in the UK who would call a millimeter a mil and a .001” a mil. Drove me bananas.

David

 

[GLO123]

As a mechanic for 42 years I’ve owned a few of these. At the time they can out they were something to grab that was cheaper than a set on micrometers. But they rely on a rack and pinion system that had tiny gears. I would break them or they would strip out the teeth. Fortunately electronic digital calipers came out. Nothing wrong with your calipers, just don’t drop it or abuse it. Go slow when you move it open or closed, you will strip out the teeth.

 

[Dusty Stevens]

I sure wish i still had my old slide rule. Once i didnt have to use it i chunked it but now i miss it. I could blow some minds at work with that.