Tire tread gauge, how do you read it?

I know...
....but on the bright side the OP at least asked the question.

 

OP do you realize they can't squeeze all those numbers into a 32nd of an inch so they put different numbers on different sides of the gauge? Just push the thing in till it hits and then take the gauge and spin it until you see a number that most closely matches where it stopped.

 

Omg

 

Mean girl.

 

Bad man.

 

Yeah bro - as said above - just read around the gauge and split the difference. 32nds are too close to jam together on one side.

Make sure to check the very lowest point in a tire, that’s the way DOT will do you.

You other mean kids doing the ‘WTF’ maneuvers -

Not all brains work the same. I had to learn how to read a micrometer, optical level etc.

 

My statement was innocent enough, now you as an esteemed Road Train Member will know that we get a great many questions here that are asked tongue in cheek. At any rate it's still just that, a tire tread gauge.

 

Those tire gauges have two types of measurements: inches and millimeters. We only use inches, the sides with 32nds on the top.

Generally,
4/32nds (of an inch) is the lowest allowed on steers.
2/32nds is the lowest allowed for the rest of the tires (truck drives and trailer tandem).

Another way of understanding these numbers is by dividing it to find the percentage of one inch. For example,

2/32 = 0.0625 = 6.25% of one inch
4/32 = 0.125 = 12.5% of one inch
16/32 = 0.50 = 50% of one inch
32/32 = 1.0 = 100% of one inch = one inch

 

I know - just razzing ya.

I learned a while back that some of the things that are second nature to some, appear as algebra to others.

Myself included - example - pulling apart a 13 speed and rebuilding it.

The guy is whistling as he works, my brain almost exploded.

 

Common core math???