Hi Bala,

Buying extra tool holders as a buffer for a CNC lathe can provide several benefits. Here are some advantages:

1. Quick Tool Change: Instead of manually changing and adjusting tools each time, the operator can pre-load the spare tool holders with different cutting tools.
    
2. Increased Flexibility: By having additional tool holders, you can expand the range of available tools and cutting operations. This is useful when working on complex or multi-step machining processes.
    
3. Improved Efficiency: With extra tool holders, you can keep frequently used tools readily available allowing for more efficient production scheduling by minimizing tool changeovers and optimizing machine utilization.
    
4. Reduced Downtime: Having spare tool holders ensures that replacement tools are immediately available, reducing downtime caused by tool failures.
    
5. Enhanced Tool Management: Each tool holder can be labeled and stored in a designated location, making it easier to locate specific tools when needed.
    
6. Cost Savings: By having spare tool holders readily available, the user can avoid rush shipping charges or production delays caused by waiting for new tool holders to arrive.