Auto Switch

Autoswitch can enable you to switch to the best tool for the block you're looking at,

Crouch to toggle this on and off, when its off it will do nothing

Toggling will show you a notification in bottom right that lets you know if its enabled or not,

It uses a system on tick to check which block the player is looking at, which means it happens before you even click a block, whenever you hover over an object it will attempt to switch your hotbar to the best tool for the block,