The rate of wear really depends on several factors. The aggregate being cut is first. All the tooth companies make several different styles and sizes of teeth. They don't do that just because they want to. They have discovered over the years that different teeth work in different conditions. Also the size and horsepower of your machine will help determine the right tooth to use. Secondly, if the teeth aren't getting enough water, they will wear prematurely. Check your spray bar to make sure it is working properly. After that, I would check the condition of the holders and the lower conveyor. Worn out holders will kill rotation and if the lower belt is too worn out, it won't pick up the material and allow it to stay in the box longer than it should. That helps wear out everything. All of this is, of course, just my opinion, but I hope it helps. You probably already know everything I just said, but here it is in case you didn't.
