The question shown in the image is: **"In single point cutting tool, Negative rake angle:"** The options are: 1. Improves machinability 2. Both A and B 3. Improves strength of the cutting tool 4. none of the above ### Correct Answer: **Improves strength of the cutting tool** #### Explanation: - **Negative rake angle** in single point cutting tools generally **improves the strength of the cutting tool** because it increases the wedge angle, making the tool less likely to break or chip. - However, it **does not improve machinability**. In fact, negative rake angles usually make the cutting process harder and increase cutting forces, but the tool lasts longer. So, the correct option is: **Improves strength of the cutting tool** (Option 3).