Shear vs. Sheer: Whats the Difference? - Grammarly Though shear and sheer sound the same, their meanings diverge significantly Shear refers to cutting or force-induced displacement within materials, whereas sheer signifies extremity or purity in terms of thinness, steepness, and completeness
Shear - Wikipedia Shear pin, in machinery, such as a plough, designed to shear (break) when a certain force is exceeded, to protect other components of the machine