The document discusses different types of machining processes including milling, drilling, sawing, and grinding. It describes the principal parts and movements involved in milling such as the base, column, work table, spindle, and ability to move in the vertical, cross, and longitudinal directions. It also outlines the key components for drilling including the base plate, column, work table, driving motor, spindle, and chuck. Additionally, it examines different sawing techniques like hack sawing, band sawing, jig sawing, and circular sawing. Band sawing specifically involves a drive wheel, idler wheel, band blade, and upper and lower saw guides. Finally, metal cutting grinders are also mentioned.