Which of the following lists three methods to create a pointed tungsten tip?

• A. Polishing; filing; hammering.
• B. Grinding; using a sharpener; melting.
• C. Sanding; lapping; cooling rapidly.
• D. Cutting; bending; twisting.

Answer: (B)

Shaping a pointed tungsten tip is all about removing material or reflowing the end to form a fine point. Grinding directly shortens and tapers the tip to a sharp point, and a dedicated sharpener is designed to reproduce that precise point consistently. Melting introduces heat to realign or reflow the end, which can refine the point when done carefully. The other methods listed mainly smooth, roughen, or physically deform the tip rather than create a sharp point, so they don’t accomplish the goal as effectively.