Mini Decimal Inch Chart Where To Find

I think starrett used to give those out years ago.
 
If your phone has a calculator, use that. Want to find the decimal equiv. of 5/16"? Type in 5 divided by 16 and hit enter. The answer is in decimal form, try it. It's a handy thing to remember, and faster than looking in the Black Book.

Eventually you memorize all common decimals however.

1/32 - .03125
1/16 - .0625
1/8 - .125
1/4 - .25
Etc.
 
There is no app for experience. ;)
bolts
1/4-20 tpi =.050 pitch = how far the bolt moves when turned one round, .025 for 1/2 turn, or .0125 for 1/4 turn.
5/16-18 =.0556 number never stops
3/8-16 = 1/16 of a inch or .0625
7/16-14 oddball but, .0714
Then 1/2" bolts, have two numbers 12 was used years ago, today 13 tpi is common.
oh and a 10-32tpi = 1/32 of inch, refer to Andre above
best yet 40 tpi = .025 pitch used on micrometer. google Wikipedia, the free encyclopedia for some interesting reading.:tranquility:.
 
I'm missing something !!! I printed the scale that chip-slinger made but how do you ever read it? It will or would fit the back of my caliper but no way to ever see the darn thing to read it. I also have these printed on the back of some rules but at least you can read them. Sorry but I don't get it.
 
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