Review on 📏 Milton 448 Tire Tread Depth Gauge - Bulk Purchase of 10 to Ensure Accuracy by Justin Zilinskas

Milton S448 Tire Tread Depth Gauge There are many reviews saying this device is difficult to use. I think if you understand my explanation below you will find that it is not difficult to use and it turns out to be quite a handy device. Details of the Milton S448 barrel - Gauge barrel (the part with numbers on it) Bar - Tire depth (the part that goes into the tire tread) Flanges - Flanges (two flat pieces of metal that press against the surface of the tire) Understanding the body Rod to Insert flange (so all numbers on barrel are visible). Find the column whose lowest number is 0 (zero) with a bar under the number. This column counts to the power of 0, 4, 8, ., 28, 32. This is the first column. Each subsequent column rotating to the right is the next column. There are 4 columns of measurements on the trunk. They all work together as one gauge. Units in 1/32 inch. To the right of the first column rotates the second column, starting at 1 (one) and counting 1, 5, 9, . To the right of the second column rotates the third column, starting at 2 (two) and counting 2, 6, 10, . To the right of the third column rotates the fourth (last) column, beginning with 3 (three) and counting 3, 7, 11, . Turn right from the fourth column back to the first column. When I say "turn right," I mean look at the next number on the right. [Note: Technically, I think this is a left (or clockwise) barrel twist. However, I think it's easier to explain if I use my eyes as a rotational frame of reference.] For the first column, start at zero and rotate right one column, to one, and rotate right one column, to two and rotate right column to three and rotate right column to four (which is the original column again), this pattern continues to increase by one (or 1/32 inch each time) until you have 32 (or one inch ) reach. Using a manometer, press down on the barrel until it stops. You can see some or all of the 32's but NOT the line under 32. Insert the bar into the tire thread. Press down on the two flanges until they are flush with the surface of the tire. The barrel should stay in place, so you can remove it for easy reading of the measurement. Look at the barrel and find the lowest line next to the flanges. The number directly above is the depth (in units of 32 inches). Even if you see different numbers in other columns next to the flanges; only the number whose line you see below is the actual value. I've experimented with this device on many different tires and measured the tape with a tape measure that has 1/32 inch units and compared it to the barrel value and it was spot on every time.