Instant mining

Instant mining is a game mechanic allowing to break 1 block per game tick without the delay of $1/4$ of a second. Below are listed the tool tier and the Efficiency and Haste levels necessary to instant-mine a block.

With the help of commands
Using commands, much higher levels of haste may be applied. Using these (or other mods that allow higher levels), the following blocks are instant-breakable.