It is not ideal to have a tread depth of 6/32 of an inch because this indicates that the tyre has worn away half of the new tyre tread depth, which is 10/32 to 12/32 of an inch. In spite of this, a tyre with a tread depth of 6/32 of an inch is still suitable for use when driving in wet and snowy conditions.
Coins from the United States can be used to measure the tread depth. Place a penny in each of the grooves that run across the tyre. There is still more than 2/32 of an inch of tread remaining even if part of Lincoln’s head is covered. The amount of tread that is left is 4/32 of an inch if the head of George Washington on a quarter is always covered. There is a remaining tread depth of 6/32 inch even if the Lincoln Memorial that is featured on a penny is always concealed.
Put one coin in each of the holes that are approximately 15 inches apart around the tyre. This reveals uneven wear, which may be caused by mechanical conditions or service conditions.
When measuring the tread depth, most states consider a tyre to be worn out when it reaches 2/32 of an inch. This level is indicated with wear bars that run across the tread pattern in North American tyres at this point.
When it snows or rains, a tyre that is worn will not perform as well. When the tread depth is only 2/32 of an inch, a car can hydroplane while travelling at highway speeds and has almost no traction in the snow. When driving in wet conditions, drivers should seriously consider replacing their tyres with ones that have a tread depth of 4/32 inch. This is because the grooves in the tyre need to be deep enough to let water run off and prevent hydroplaning. A tread depth of 5/32 inch is required for use in snowy conditions. This allows the snow to be compressed in the grooves of the tyre and then released as the tyre rolls.