Which of the following tools is primarily used for making straight cuts in wood and other materials?

The hacksaw is primarily used for making straight cuts in wood and other materials, especially in situations where a finer, more precise cut is needed. This hand-powered tool features a frame that holds a serrated blade under tension, allowing for clean and controlled cutting through various materials, such as wood, metal, or plastic.

Hacksaws are particularly effective for tasks that require accuracy, making them a preferred choice for detailed work, such as plumbing or mechanical tasks. This contrasts with other tools listed, which serve different cutting purposes or are intended for more specific applications. For instance, a reciprocating saw is designed for rough cutting and demolition work but is not as precise as a hacksaw for straight cuts. Similarly, bolt cutters are specialized tools meant for cutting through metal fasteners, and a chainsaw is used for larger-scale cutting, particularly in cutting trees or logs, where a straight cut is less of a concern.