Which tool is specifically used to resurface handhole seats?

The handhole seat refacing tool is specifically designed for resurfacing handhole seats because it is engineered to create a smooth and level surface on the handhole, which is critical for ensuring a proper seal and fit for the handhole cover. This tool typically incorporates features that allow for precision adjustments and an optimal cutting angle, which helps to remove any imperfections or damage on the seating surface, thereby enhancing the performance and reliability of the equipment it is used on.

In contrast, other tools mentioned do not serve this specific function. A rotary grinder, while effective for general grinding tasks, does not offer the targeted capabilities needed for handhole seats. A pipe cutter is used for cutting pipes and would not be appropriate for resurfacing tasks. Lastly, a surface plate is a flat reference base for measuring or checking the flatness of objects, not for actual resurfacing work. Therefore, the handhole seat refacing tool is uniquely suited for the job, ensuring proper maintenance and optimal operation of the associated machinery.