This thing works great! If your crushing rock by hand it gets old real quick! This hammer head and mortar combo will send your production through the roof! I was able to crush about 25 lbs of white quartz full of minerals in about an hour to basically dust. It would have taken me at least a couple days to process the same amount of material crushing by hand. Plus there is almost no effort to crush using this head in an air hammer. I love the size of the mortar too, you can put a fair amount of material in it opposed to the typical 2” sleeve hand crushers. I do find it easier to start with material that is 1” or smaller, it just makes the crushing to dust part much faster. If your hard rock mining, this hammer head and mortar from High Plains are must have tools in your arsenal!
