The choil is an unsharpened section of the blade. If a guard is present, the choil will be in front of the guard on the blade itself. The choil is often used as a way to choke up on the blade for close-in work. The index finger is placed in the choil, and this close proximity to the edge allows for greater control. In addition, the choil is just in front of where the blade itself becomes part of the handle, an area often prone to breakage due to the blade-handle juncture. The choil leaves this area at full thickness and thus stronger.