🔍 Key Concepts

• Lathe tool geometry – notice the shape of the cutting edge and whether it is narrow, rounded, or has a clear leading side and trailing side. • Direction of feed – look at how tool "P" is positioned relative to the workpiece: is it aimed at the diameter (for turning/parting) or the face (for facing)? • Special-purpose vs general-purpose tools – parting and facing tools are specialized, while a round-nose or universal tool has a more general cutting profile.

💭 Think About

• Look closely at the cutting tip of tool "P". Does it have a sharp, straight edge aligned radially toward the center, or does it have a prominent rounded nose? • Ask yourself: if the carriage moved parallel to the lathe axis with tool "P" in that position, what kind of surface would it produce on the work – a groove that could separate a piece, a flat face, or a smooth curved profile? • Compare tool "P" with the other tools labeled on the shaft. Which one appears specifically designed to cut a narrow groove straight into the work, and which ones are for general turning/facing?

✅ Before You Answer

• Verify whether the cutting edge is very narrow and centered on the workpiece (a clue for one specific tool type). • Check if the tool’s nose is clearly rounded or if it is mainly a straight edge with only a small radius at the tip. • Confirm whether tool "P" is oriented mainly toward the circumference (for turning/parting) or toward the end face (for facing).