Which is a lifting/pulling tool?

The come-a-long is a tool specifically designed for lifting and pulling heavy objects, making it an ideal choice for various rescue operations and other scenarios where maneuvering a load is necessary. It often employs a ratcheting mechanism that allows for controlled pulling of loads, often in tight spaces where traditional lifting methods may be impractical. This tool is commonly used in firefighting and rescue situations to assist with vehicle extrication or clearing debris.

The other options serve different purposes. The combination tool primarily provides cutting and prying capabilities, while cribbing is used to stabilize or support heavy loads but does not inherently lift or pull. An impact wrench is designed for loosening or tightening bolts and nuts, rather than for lifting or pulling objects. Thus, the come-a-long distinctly aligns with the definition of a lifting/pulling tool within firefighting and rescue operations.