What is a sweeping plunge?
A sweeping plunge is a style of grind that curves gently from the knife’s edge (nearest the handle) toward the tip of the blade. It’s often the mark of an experienced knife maker as a clean, curved plunge line is difficult to achieve evenly on both sides of the knife. Sweeping, or curved, plunges will be inherently stronger than straight vertical plunges and will reduce the risk of a break.
If you’ve got a belt grinder and want to learn how to do sweeping plunges, this guide describes the whole process.