The drone flew. The spool unfurled across the valley, and for one small, flapping miracle the village’s children crossed safely. The woman’s gratitude rippled out: a newspaper photographer took a picture of the drone against a bruised sky, and the image found its way into a morning section where an engineering student named Meera saw it.
The specifics of hole-making and internal finishing. manufacturing technology volume 2 - P.N Rao
Given that gears are fundamental to machine drives, Rao devotes a full section to gear cutting: The drone flew
However, depending on your goal (writing a review, understanding a specific chapter, or finding the book itself), here are the most useful resources and how to approach them: The specifics of hole-making and internal finishing
: Detailed analysis of chip formation, cutting-tool geometry (rake angles, nose radius), tool wear, tool life, and the economics of machining. Conventional Machine Tools