Mini-review for a very inexpensive, but quite useful tool for express measuring the tread depth of tires. The thing is quite worthy to take its small place in the “first-aid kit” of the motorist.
Every motorist knows that if you followhis car, occasionally doing some simple checks and measurements of the available characteristics (fluid levels, tightening bolts, etc.), then, usually, the car will serve its owner faithfully for many years. The same applies to car tires, you need to monitor their condition, at least a couple of times a year, with a “pereobuvki”, checking the integrity of the rubber, the presence of foreign objects, cracks, hernias and tread depth, especially if the rubber is well resembled.
Naturally, if the rubber is “bald”, then it’s obvious that it’s urgent to carry it to the garbage:
But where is the edge when the tire can still be exploited?
For an ordinary passenger car, the tread height of standard new summer tires made for traveling on general asphalt roads is, on average, 8 mm.
Minimum permissible tread depth. For vehicles of categories M1, N1, O1, O2 (these are passenger cars, as well as trucks, the maximum mass of which is not more than 3.5 tons, and also trailers for them, which also do not exceed this weight) - 1.6 mm.
The tread depth of the new winter tires for cars is in the range of 9-15mm. For crossovers and jeeps - 15-18mm.
Minimum depth The residual depth of the tread pattern of winter tires designed for operation on icy or snow-covered road surfaces during operation on the specified surface is at least 4.0 mm.
There are “embedded” indicators on the surface of tires, for example, bulging protrusions:
Or more advanced - digital. The numbers are erased by wear in descending order:
The easiest, but not the most reliable, waymeasure the depth of the projector 10 penny coin. If you put it into the projector, look at the side and only the bezel is closed - the rubber is to be ejected; if the ornament closes - more or less:
But, IMHO, it is better to have something like a review thing - the pocket will not be delayed, and peace will add
The meter is quite small:
On the front side, a plate with a probe moves along the guides, and a marking is applied on both sides indicating the minimum recommended tread depth:
Made of durable, non-bending plastic:
The size corresponds to:
Well, actually the measurement itself, no difficulties, of course, for accuracy it is necessary that the protector be clean:
Of course, the thing is not the basic necessities of a motorist's tools ... but let it be :), you can even hang it somewhere on a string or chain, there is a corresponding hole: