$5.$ Chip Flow Direction: $-$ Explain the relationship between chip flow direction and the cutting process. $-$ How does controlling chip flow contribute to surface finish in machining? $-$ Discuss the consequences of improper chip flow direction on tool life$\mathrm{.}6.$ Tool Angles Specification Systems: $-$ Compare the ASA and ORS systems for specifying tool angles. $-$ How does the use of a reference plane simplify tool angle specification? $-$ Explain the significance of the nose radius in tool geometry$\mathrm{.}7.$ Cutting Parameters and Tool Geometry: $-$ How do cutting speed and feed rate affect the selection of tool geometry? $-$ Discuss the role of depth of cut in determining the appropriate tool geometry. $-$ Explain the relationship between cutting parameters and tool wear$\mathrm{.}8.$ Indexable Inserts, Chip Breakers: $-$ Define indexable inserts and their advantages in machining processes. $-$ How do chip breakers enhance the performance of cutting tools? $-$ Discuss the considerations in selecting the right indexable insert for a specific application.