Which piece of equipment is specifically used for leveling and grading on a crawler tractor?

The blade is specifically designed for leveling and grading on a crawler tractor. It is a large, flat surface mounted on the front of the tractor, allowing operators to push material such as dirt, gravel, or sand to create a flat surface or achieve a specific grade. The blade can be adjusted to various angles and heights, providing versatility for different grading tasks.

In contrast, a winch is primarily used for pulling or lifting heavy objects instead of grading. A ripper is used for breaking up hard ground or removing vegetation by tearing into the soil, not specifically for leveling. A bucket, while effective for digging and loading materials, is not the ideal tool for the precise leveling and grading tasks that a blade excels at. This makes the blade the most suitable equipment for the task described.