Speedmine -

: Eliminating the standard 6-tick (0.3 second) delay between breaking one block and the next.

To bypass these limits, developers created the hack. It works by: SpeedMine

In the early days of Minecraft, "instant mining" was a rare achievement reached only with a Diamond Pickaxe and a Haste II beacon. For the competitive multiplayer scene, however, waiting for blocks to break was a bottleneck. The Rise of SpeedMine : Eliminating the standard 6-tick (0

: Attempting to break two blocks at once to double efficiency. SpeedMine

: Queuing block breaks in the background so they appear legitimate to the server.