Before changing tools in the lathe, the spindle must be raised to its uppermost position.

• A. True
• B. False
• C. Not applicable
• D. Sometimes

Answer: (B)

Safety and proper procedure when changing tools on a lathe center on making sure the spindle is not turning. The spindle position itself isn’t a universal requirement for tool changes; what matters is that the machine is completely stopped and cannot rotate while you remove or insert a tool. In practice you would turn off the power, wait for the spindle to come to a full stop, remove the chuck key, and then move the carriage or tool post to a safe position to clear the work and allow access to the tool holder. Some setups may need you to position the tool in a convenient location or retract the tool carrier for clearance, but raising the spindle to its uppermost position is not a standard prerequisite across all lathes.