What is the recommended method for holding round stock while drilling cotter pin holes?

Study for the Sewage Treatment Worker Test. Prepare with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Using a V block is the recommended method for holding round stock while drilling cotter pin holes due to its design that specifically accommodates circular shapes. A V block features a V-shaped groove that securely cradles the round stock, preventing it from rotating or slipping during the drilling process. This stability is crucial for maintaining accuracy and ensuring that the holes are drilled precisely where intended.

The V block allows for firm support, which is particularly important when drilling, as any movement can lead to misalignment and affect the hole's placement. Additionally, the geometry of the V block provides a way to easily access the workpiece from different angles, enhancing the worker's ability to drill perpendicular to the surface.

While a clamping device could hold the stock, it may not provide the same level of support for round items. A bench vice can also hold round stock, but it may not grip it as securely and can result in deformation if too much pressure is applied. A lathe machine is typically used for shaping and sizing materials rather than for just drilling; it's not specifically designed for the function of drilling holes in a static setup like a V block. Thus, the V block stands out as the most effective choice for optimal holding during this task.

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