lower cutting edge

low·er cut·ting edge

(lōwĕr kŭting ej)
Cutting edge of an area-specific curette used for periodontal débridement.
References in periodicals archive ?
So, cutting tools with lower cutting edge radius improve the workpiece surface.
With rigid tapping, the tool is completely guided by the CNC machine--by reducing the guide portion of the tool, less friction is created, lower cutting edge temperatures are reached, and greater speeds are possible.