Knives

Knives are one of the new tool types. They function as low damage swords, and as basic cutting tools. They have a speed modifier against blocks such as leaves, and will drop extra items when breaking plant type blocks: Leaves have roughly twice the chance to drop sticks, Tall grass will drop plant fibers.

Knives can also be used to cut material down. To cut something, hold a knife in one hand, the item you want to cut in the other, and then right click. If the object is a valid knife recipe, it will be cut, and the resultant item(s) will drop on the ground. Use JEI to see the full list of items that can be cut with a knife.