What is the German term for "ratchet"?

The German term for "ratchet" is indeed "Ratsche." This term specifically refers to a mechanism that allows rotation or movement in one direction while preventing motion in the opposite direction, which is essential for tools like socket wrenches or winches. Understanding this term in its context highlights its relevance in mechanical applications, where the ability to lock movement in one direction is crucial to functionality.

The other terms provided relate to different mechanical components: "Hebel" translates to "lever," which is a simple machine that amplifies force; "Kurbel" means "crank," which is a mechanism used to convert circular motion into linear motion; and "Schraube" refers to "screw," a fastener that converts rotational motion into linear motion to hold objects together. These terms are significant in their own right but do not pertain to the specific function of a ratchet mechanism.