It is the opposite. To harness its speed, it requires much more energy.
The diamond drill doesn't need too much speed to destroy. So why you need to make diamond drill higher speed? It can have same speed with an ordinary drill and can make more operations than it
It is modeled after the vanilla MC's tool system.
Mining Drill/Iron Pickaxe: slower, can't mine obsidian
Diamond Drill/Diamond Pickaxe: faster, can mine obsidian
So the diamond drill should use less power than the mining drill ,therefore more uses
In an industrial sense, the diamond drill is "overclocked" and increases speed for more power consumption.
However, the battery has not been improved so there will be less uses.
In an industrial sense, the diamond drill is "overclocked" and increases speed for more power consumption.
However, the battery has not been improved so there will be less uses.
This. I gave up on trying to explain it 
The drill is covered in diamonds. Therefore, more friction will be created, necessitating higher energy usage while also boring faster. Ergo, more or at least the same amount of power must be expended in order to mine out a block. And if you're so bothered about energy usage, use a diamond pick, wear a batpack, or have a charging point near you.
