🔍 Key Concepts

• Lathe tool orientation: Notice which direction the cutting edge of tool "L" faces and what part of the work it could reach. • Internal vs external work: Think about whether tool "L" is shaped to cut on the outside surface of the workpiece or reach inside a hole/bore. • Threading vs general turning: Compare tool "L" with the other tools shown that are obviously turning tools or boring tools.

💭 Think About

• Look at where tool "L" is located in relation to the chuck and the inside of the workpiece. Could it reach into an internal surface or mainly work on the outside? • Examine the point and flank angles of tool "L". Do they resemble a V-shaped threading tool or a more square/rounded turning tool? • Ask yourself what machining operation needs a tool shaped like that positioned close to the inside of the part near the chuck.

✅ Before You Answer

• Confirm whether tool "L" has a V-shaped cutting point that matches a screw thread form, or a more general turning profile. • Check if tool "L" is able to enter a hole or bore in the workpiece or if it only contacts the external diameter. • Compare the label for tool "L" with any nearby tools in the figure that are clearly external tools, and note how its shape differs.