what is the difference between a sag mill and ball mill?
Rod mills are less common than ball mills for grinding minerals. The rods used in the mill, usually a high-carbon steel, can vary in both the length and the diameter. However, the smaller the rods, the larger is the total surface area and hence, the greater the grinding efficiency  Autogenous mill
What is the difference between a High and Low Pressure Ball Float Valve A Low Pressure Ball Float Valve is provided with a larger hole within the valve assembly (looking down inside the threaded end) to fill the tank or cistern up more quickly, however if the water pressure is too high this will result in excessive noise or water hammer
Drills are used a lot if you work with metals, but this article will focus only on end mills and ball nose end mills. A slot drill, ball end mill and an end mill I have curated a list of common questions that people ask and have given an answer that best fits the concerns a cnc hobbyist may have