The lathe tool shown as figure "U" in the...

🔍 Key Concepts

• Look closely at tool U and note the direction its cutting edge faces relative to the workpiece rotation. • Recall that side‑facing tools are used primarily to machine the side of a shoulder, while turning tools are used along the length of the work. • Compare the shape of tool U with the more obviously narrow, straight tool used specifically for cutting-off/parting operations.

💭 Think About

• Is tool U designed to remove metal along the side face of a shoulder, along the length of the shaft, or straight in toward the center to separate the piece? • From the illustration, does the cutting edge of tool U appear to be oriented to cut toward the headstock or toward the tailstock? How does that relate to the terms left and right in the answer choices? • Which other labeled tool in the figure most clearly looks like a cutting-off (parting) tool, and how is its shape different from tool U?

✅ Before You Answer

• Verify whether tool U has a broad side-cutting edge with clearance for facing the side of a shoulder rather than a thin blade for parting. • Check the direction of feed implied by the tool’s orientation: is it intended to move toward the headstock or tailstock? Match that direction with the correct left/right description. • Confirm that the tool you associate with cutting-off in the illustration is not tool U, to avoid confusing the two specialized shapes.

The lathe tool shown as figure "U" in the illustration is commonly known as a __________. Illustration GS-0090

left cut side-facing tool

universal turning tool

right side end facing tool

cutting-off tool

🔍 Key Concepts

💭 Think About

✅ Before You Answer